Springs - Extension– Page5 – Miniature Bearings Australia - MBA Minibearings - Online, Pick-Up, Retail, Distributors, Wholesale

OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Spring Rate	Initial Tension (IT)
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 47.50 mm	Spring Rate 0.12 N/mm	Initial Tension (IT) 0.6 N
Material: Steel Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-04-M (5 Pcs) Extension Springs - 4x25x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 47.50 mm
Material: Steel Spring Rate: 0.12 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-04-M (5 Pcs) Extension Springs - 4x25x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-04-M (5 Pcs) --- Extension Springs - 4x25x0.4 mm Music Wire - Steel Spring Sale ES-0400-0250-04-M (5 Pcs) --- Extension Springs - 4x25x0.4 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 47.50 mm	Spring Rate 0.12 N/mm	Initial Tension (IT) 0.6 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0250-04-S4 (5 Pcs) Extension Springs - 4x25x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $10.14 AUD Regular price ~~$12.16 AUD~~ Sale price $10.14 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 47.50 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.12 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0250-04-S4 (5 Pcs) Extension Springs - 4x25x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $10.14 AUD Regular price ~~$12.16 AUD~~ Sale price $10.14 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-04-S4 (5 Pcs) --- Extension Springs - 4x25x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0250-04-S4 (5 Pcs) --- Extension Springs - 4x25x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $10.14 AUD Regular price ~~$12.16 AUD~~ Sale price $10.14 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 41.90 mm	Spring Rate 0.23 N/mm	Initial Tension (IT) 1.0 N
Material: Steel Load at L1: 4.81 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-045-M (100 Pcs) Extension Springs - 4x25x0.45 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $131.59 AUD Regular price ~~$278.28 AUD~~ Sale price $131.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 41.90 mm
Material: Steel Spring Rate: 0.23 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-045-M (100 Pcs) Extension Springs - 4x25x0.45 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $131.59 AUD Regular price ~~$278.28 AUD~~ Sale price $131.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-045-M (100 Pcs) --- Extension Springs - 4x25x0.45 mm Music Wire - Steel Spring Sale ES-0400-0250-045-M (100 Pcs) --- Extension Springs - 4x25x0.45 mm Music Wire - Steel Spring Regular price $131.59 AUD Regular price ~~$278.28 AUD~~ Sale price $131.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 41.90 mm	Spring Rate 0.23 N/mm	Initial Tension (IT) 1.0 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 4.81 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0250-045-S4 (5 Pcs) Extension Springs - 4x25x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $8.77 AUD Regular price ~~$10.53 AUD~~ Sale price $8.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 41.90 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.23 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0250-045-S4 (5 Pcs) Extension Springs - 4x25x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $8.77 AUD Regular price ~~$10.53 AUD~~ Sale price $8.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-045-S4 (5 Pcs) --- Extension Springs - 4x25x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0250-045-S4 (5 Pcs) --- Extension Springs - 4x25x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $8.77 AUD Regular price ~~$10.53 AUD~~ Sale price $8.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 38.60 mm	Spring Rate 0.39 N/mm	Initial Tension (IT) 1.2 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 6.37 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0250-05-S4 (5 Pcs) Extension Springs - 4x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $10.14 AUD Regular price ~~$12.16 AUD~~ Sale price $10.14 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 38.60 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.39 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0250-05-S4 (5 Pcs) Extension Springs - 4x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $10.14 AUD Regular price ~~$12.16 AUD~~ Sale price $10.14 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-05-S4 (5 Pcs) --- Extension Springs - 4x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0250-05-S4 (5 Pcs) --- Extension Springs - 4x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $10.14 AUD Regular price ~~$12.16 AUD~~ Sale price $10.14 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 38.90 mm	Spring Rate 0.39 N/mm	Initial Tension (IT) 1.2 N
Material: Steel Load at L1: 6.37 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-05-M (5 Pcs) Extension Springs - 4x25x0.5 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 38.90 mm
Material: Steel Spring Rate: 0.39 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-05-M (5 Pcs) Extension Springs - 4x25x0.5 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-05-M (5 Pcs) --- Extension Springs - 4x25x0.5 mm Music Wire - Steel Spring Sale ES-0400-0250-05-M (5 Pcs) --- Extension Springs - 4x25x0.5 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.550 mm (Equiv. 0.022 in.)	Max. Extension (L1) 35.00 mm	Spring Rate 0.66 N/mm	Initial Tension (IT) 1.9 N
Material: Steel Load at L1: 8.43 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-055-M (5 Pcs) Extension Springs - 4x25x0.55 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 25 mm (Equiv. 0.984 in.)	Wire Diameter (d) 0.550 mm (Equiv. 0.022 in.)	Max. Extension (L1) 35.00 mm
Material: Steel Spring Rate: 0.66 N/mm Initial Tension (IT): 1.9 N Load at L1: 8.43 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0250-055-M (5 Pcs) Extension Springs - 4x25x0.55 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0250-055-M (5 Pcs) --- Extension Springs - 4x25x0.55 mm Music Wire - Steel Spring Sale ES-0400-0250-055-M (5 Pcs) --- Extension Springs - 4x25x0.55 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 72.70 mm	Spring Rate 0.05 N/mm	Initial Tension (IT) 0.2 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 2.26 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-035-S4 (5 Pcs) Extension Springs - 4x30x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $11.05 AUD Regular price ~~$13.25 AUD~~ Sale price $11.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 72.70 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.05 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-035-S4 (5 Pcs) Extension Springs - 4x30x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $11.05 AUD Regular price ~~$13.25 AUD~~ Sale price $11.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-035-S4 (5 Pcs) --- Extension Springs - 4x30x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0300-035-S4 (5 Pcs) --- Extension Springs - 4x30x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $11.05 AUD Regular price ~~$13.25 AUD~~ Sale price $11.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 72.70 mm	Spring Rate 0.05 N/mm	Initial Tension (IT) 0.2 N
Material: Steel Load at L1: 2.26 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-035-M (5 Pcs) Extension Springs - 4x30x0.35 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 72.70 mm
Material: Steel Spring Rate: 0.05 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-035-M (5 Pcs) Extension Springs - 4x30x0.35 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-035-M (5 Pcs) --- Extension Springs - 4x30x0.35 mm Music Wire - Steel Spring Sale ES-0400-0300-035-M (5 Pcs) --- Extension Springs - 4x30x0.35 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 58.40 mm	Spring Rate 0.09 N/mm	Initial Tension (IT) 0.6 N
Material: Steel Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-04-M (5 Pcs) Extension Springs - 4x30x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 58.40 mm
Material: Steel Spring Rate: 0.09 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-04-M (5 Pcs) Extension Springs - 4x30x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-04-M (5 Pcs) --- Extension Springs - 4x30x0.4 mm Music Wire - Steel Spring Sale ES-0400-0300-04-M (5 Pcs) --- Extension Springs - 4x30x0.4 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 58.40 mm	Spring Rate 0.09 N/mm	Initial Tension (IT) 0.6 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-04-S4 (5 Pcs) Extension Springs - 4x30x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $11.50 AUD Regular price ~~$13.80 AUD~~ Sale price $11.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 58.40 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.09 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-04-S4 (5 Pcs) Extension Springs - 4x30x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $11.50 AUD Regular price ~~$13.80 AUD~~ Sale price $11.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-04-S4 (5 Pcs) --- Extension Springs - 4x30x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0300-04-S4 (5 Pcs) --- Extension Springs - 4x30x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $11.50 AUD Regular price ~~$13.80 AUD~~ Sale price $11.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 51.70 mm	Spring Rate 0.18 N/mm	Initial Tension (IT) 1.0 N
Material: Steel Load at L1: 4.81 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-045-M (5 Pcs) Extension Springs - 4x30x0.45 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 51.70 mm
Material: Steel Spring Rate: 0.18 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-045-M (5 Pcs) Extension Springs - 4x30x0.45 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-045-M (5 Pcs) --- Extension Springs - 4x30x0.45 mm Music Wire - Steel Spring Sale ES-0400-0300-045-M (5 Pcs) --- Extension Springs - 4x30x0.45 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 51.70 mm	Spring Rate 0.18 N/mm	Initial Tension (IT) 1.0 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 4.81 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-045-S4 (5 Pcs) Extension Springs - 4x30x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $12.05 AUD Regular price ~~$14.45 AUD~~ Sale price $12.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 51.70 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.18 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-045-S4 (5 Pcs) Extension Springs - 4x30x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $12.05 AUD Regular price ~~$14.45 AUD~~ Sale price $12.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-045-S4 (5 Pcs) --- Extension Springs - 4x30x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0300-045-S4 (5 Pcs) --- Extension Springs - 4x30x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $12.05 AUD Regular price ~~$14.45 AUD~~ Sale price $12.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 47.50 mm	Spring Rate 0.29 N/mm	Initial Tension (IT) 1.2 N
Material: Steel Load at L1: 6.37 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-05-M (5 Pcs) Extension Springs - 4x30x0.5 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 47.50 mm
Material: Steel Spring Rate: 0.29 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0300-05-M (5 Pcs) Extension Springs - 4x30x0.5 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-05-M (5 Pcs) --- Extension Springs - 4x30x0.5 mm Music Wire - Steel Spring Sale ES-0400-0300-05-M (5 Pcs) --- Extension Springs - 4x30x0.5 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 47.50 mm	Spring Rate 0.29 N/mm	Initial Tension (IT) 1.2 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 6.37 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-05-S4 (5 Pcs) Extension Springs - 4x30x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $11.50 AUD Regular price ~~$13.80 AUD~~ Sale price $11.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 30 mm (Equiv. 1.181 in.)	Wire Diameter (d) 0.500 mm (Equiv. 0.02 in.)	Max. Extension (L1) 47.50 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.29 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0300-05-S4 (5 Pcs) Extension Springs - 4x30x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $11.50 AUD Regular price ~~$13.80 AUD~~ Sale price $11.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0300-05-S4 (5 Pcs) --- Extension Springs - 4x30x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0300-05-S4 (5 Pcs) --- Extension Springs - 4x30x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $11.50 AUD Regular price ~~$13.80 AUD~~ Sale price $11.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 35 mm (Equiv. 1.378 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 68.70 mm	Spring Rate 0.08 N/mm	Initial Tension (IT) 0.6 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0350-04-S4 (5 Pcs) Extension Springs - 4x35x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $14.50 AUD Regular price ~~$17.40 AUD~~ Sale price $14.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 35 mm (Equiv. 1.378 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 68.70 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.08 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0350-04-S4 (5 Pcs) Extension Springs - 4x35x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $14.50 AUD Regular price ~~$17.40 AUD~~ Sale price $14.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0350-04-S4 (5 Pcs) --- Extension Springs - 4x35x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0350-04-S4 (5 Pcs) --- Extension Springs - 4x35x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $14.50 AUD Regular price ~~$17.40 AUD~~ Sale price $14.50 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 35 mm (Equiv. 1.378 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 68.70 mm	Spring Rate 0.08 N/mm	Initial Tension (IT) 0.6 N
Material: Steel Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0350-04-M (5 Pcs) Extension Springs - 4x35x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 35 mm (Equiv. 1.378 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 68.70 mm
Material: Steel Spring Rate: 0.08 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0350-04-M (5 Pcs) Extension Springs - 4x35x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0350-04-M (5 Pcs) --- Extension Springs - 4x35x0.4 mm Music Wire - Steel Spring Sale ES-0400-0350-04-M (5 Pcs) --- Extension Springs - 4x35x0.4 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 35 mm (Equiv. 1.378 in.)	Wire Diameter (d) 0.550 mm (Equiv. 0.022 in.)	Max. Extension (L1) 50.20 mm	Spring Rate 0.43 N/mm	Initial Tension (IT) 1.9 N
Material: Steel Load at L1: 8.43 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0350-055-M (100 Pcs) Extension Springs - 4x35x0.55 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $131.59 AUD Regular price ~~$278.28 AUD~~ Sale price $131.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 35 mm (Equiv. 1.378 in.)	Wire Diameter (d) 0.550 mm (Equiv. 0.022 in.)	Max. Extension (L1) 50.20 mm
Material: Steel Spring Rate: 0.43 N/mm Initial Tension (IT): 1.9 N Load at L1: 8.43 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0350-055-M (100 Pcs) Extension Springs - 4x35x0.55 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $131.59 AUD Regular price ~~$278.28 AUD~~ Sale price $131.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0350-055-M (100 Pcs) --- Extension Springs - 4x35x0.55 mm Music Wire - Steel Spring Sale ES-0400-0350-055-M (100 Pcs) --- Extension Springs - 4x35x0.55 mm Music Wire - Steel Spring Regular price $131.59 AUD Regular price ~~$278.28 AUD~~ Sale price $131.59 AUD Unit price per 100 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 100.30 mm	Spring Rate 0.03 N/mm	Initial Tension (IT) 0.2 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 2.26 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0400-035-S4 (5 Pcs) Extension Springs - 4x40x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $13.32 AUD Regular price ~~$15.98 AUD~~ Sale price $13.32 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 100.30 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.03 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0400-035-S4 (5 Pcs) Extension Springs - 4x40x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $13.32 AUD Regular price ~~$15.98 AUD~~ Sale price $13.32 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0400-035-S4 (5 Pcs) --- Extension Springs - 4x40x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0400-035-S4 (5 Pcs) --- Extension Springs - 4x40x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $13.32 AUD Regular price ~~$15.98 AUD~~ Sale price $13.32 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 100.30 mm	Spring Rate 0.03 N/mm	Initial Tension (IT) 0.2 N
Material: Steel Load at L1: 2.26 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0400-035-M (5 Pcs) Extension Springs - 4x40x0.35 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.350 mm (Equiv. 0.014 in.)	Max. Extension (L1) 100.30 mm
Material: Steel Spring Rate: 0.03 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0400-035-M (5 Pcs) Extension Springs - 4x40x0.35 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0400-035-M (5 Pcs) --- Extension Springs - 4x40x0.35 mm Music Wire - Steel Spring Sale ES-0400-0400-035-M (5 Pcs) --- Extension Springs - 4x40x0.35 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 78.50 mm	Spring Rate 0.07 N/mm	Initial Tension (IT) 0.6 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0400-04-S4 (5 Pcs) Extension Springs - 4x40x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $15.05 AUD Regular price ~~$18.05 AUD~~ Sale price $15.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 78.50 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.07 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0400-04-S4 (5 Pcs) Extension Springs - 4x40x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $15.05 AUD Regular price ~~$18.05 AUD~~ Sale price $15.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0400-04-S4 (5 Pcs) --- Extension Springs - 4x40x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0400-04-S4 (5 Pcs) --- Extension Springs - 4x40x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $15.05 AUD Regular price ~~$18.05 AUD~~ Sale price $15.05 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 78.50 mm	Spring Rate 0.07 N/mm	Initial Tension (IT) 0.6 N
Material: Steel Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0400-04-M (5 Pcs) Extension Springs - 4x40x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.400 mm (Equiv. 0.016 in.)	Max. Extension (L1) 78.50 mm
Material: Steel Spring Rate: 0.07 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0400-04-M (5 Pcs) Extension Springs - 4x40x0.4 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0400-04-M (5 Pcs) --- Extension Springs - 4x40x0.4 mm Music Wire - Steel Spring Sale ES-0400-0400-04-M (5 Pcs) --- Extension Springs - 4x40x0.4 mm Music Wire - Steel Spring Regular price $6.77 AUD Regular price ~~$13.91 AUD~~ Sale price $6.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 70.00 mm	Spring Rate 0.13 N/mm	Initial Tension (IT) 1.0 N
Material: Steel Load at L1: 4.81 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0400-045-M (5 Pcs) Extension Springs - 4x40x0.45 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.86 AUD Regular price ~~$14.20 AUD~~ Sale price $6.86 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 70.00 mm
Material: Steel Spring Rate: 0.13 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N Category: Springs - Extension - Music Wire
Part Number: ES-0400-0400-045-M (5 Pcs) Extension Springs - 4x40x0.45 mm Music Wire - Steel Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $6.86 AUD Regular price ~~$14.20 AUD~~ Sale price $6.86 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0400-045-M (5 Pcs) --- Extension Springs - 4x40x0.45 mm Music Wire - Steel Spring Sale ES-0400-0400-045-M (5 Pcs) --- Extension Springs - 4x40x0.45 mm Music Wire - Steel Spring Regular price $6.86 AUD Regular price ~~$14.20 AUD~~ Sale price $6.86 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 70.00 mm	Spring Rate 0.13 N/mm	Initial Tension (IT) 1.0 N
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Load at L1: 4.81 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0400-045-S4 (5 Pcs) Extension Springs - 4x40x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $13.77 AUD Regular price ~~$16.53 AUD~~ Sale price $13.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
OD (D0) 4.00 mm (Equiv. 0.157 in.)	Overall Length (L0) 40 mm (Equiv. 1.575 in.)	Wire Diameter (d) 0.450 mm (Equiv. 0.018 in.)	Max. Extension (L1) 70.00 mm
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80 Spring Rate: 0.13 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N Category: Springs - Extension - Stainless Steel
Part Number: ES-0400-0400-045-S4 (5 Pcs) Extension Springs - 4x40x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Out of Stock \| Backorder Now \| Orders can be expected around Mon, Dec 08, 2025 Regular price $13.77 AUD Regular price ~~$16.53 AUD~~ Sale price $13.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
ES-0400-0400-045-S4 (5 Pcs) --- Extension Springs - 4x40x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Sale ES-0400-0400-045-S4 (5 Pcs) --- Extension Springs - 4x40x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring Regular price $13.77 AUD Regular price ~~$16.53 AUD~~ Sale price $13.77 AUD Unit price per 5 Per Sell Unit Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now Sale

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Miniature Bearings Australia

Collection: Springs - Extension

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