Springs - Extension

Springs -> Extension

There are 1098 products in the sub-categories of Springs - Extension. Scroll down or follow the link to Springs - Extension in the products table to see all these items combined into a handy table with filters. To narrow down the selection, please choose a sub-category from the links below.

Extension Springs - 3x10x0.25 mm - Steel

Springs - Extension - Music Wire

A selection of Music Wire Extension Springs. Carbon spring steel, zinc plated...

Springs - Extension - Music Wire

Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80

Springs - Extension - Stainless Steel

A selection of Stainless Steel Extension Springs. 300 gradd stainless steel selection,...

Springs - Extension - Stainless Steel

Category Details

This category includes various types of extension springs.
  • Helical spring that absorbs and stores energy by resisting a pulling force. When extended, it stores energy, and when released, it redistributes that energy to return to its original, coiled shape.
  • Typically used to provide a pulling force between two objects, often with hooks or loops on either end for attachment.
  • This category includes short and long lengths. An expanded range may be available on special order. Please enquire.
Springs - Extension

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Springs - Extension category on the Small Parts & Bearings online store.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
Extension Springs - 3x10x0.25 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
20.40
mm
Spring Rate
0.11
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x10x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-025-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
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Quantity Required

Backorder: Out of Stock.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
Extension Springs - 3x10x0.25 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
20.40
mm
Extension Springs - 3x10x0.25 mm - Steel
Material: Steel    Spring Rate: 0.11 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-025-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
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Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
20.40
mm
Spring Rate
0.11
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 1.27 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-025-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.14 AUD
$8.56 AUD $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
20.40
mm
Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.11 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-025-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.14 AUD
$8.56 AUD $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.3 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
18.70
mm
Spring Rate
0.23
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x10x0.3 mm - Steel
Material: Steel    Load at L1: 2.25 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-03-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.3 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
18.70
mm
Extension Springs - 3x10x0.3 mm - Steel
Material: Steel    Spring Rate: 0.23 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-03-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
18.70
mm
Spring Rate
0.23
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x10x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 2.25 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-03-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.14 AUD
$8.56 AUD $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
18.70
mm
Extension Springs - 3x10x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.23 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-03-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.14 AUD
$8.56 AUD $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
14.60
mm
Spring Rate
0.59
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x10x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 3.33 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.14 AUD
$8.56 AUD $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
14.60
mm
Extension Springs - 3x10x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.14 AUD
$8.56 AUD $7.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.35 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
14.60
mm
Spring Rate
0.59
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x10x0.35 mm - Steel
Material: Steel    Load at L1: 3.33 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-035-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.35 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
14.60
mm
Extension Springs - 3x10x0.35 mm - Steel
Material: Steel    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-035-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
13.50
mm
Spring Rate
0.98
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x10x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 4.41 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.77 AUD
$10.53 AUD $8.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
13.50
mm
Extension Springs - 3x10x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.98 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.77 AUD
$10.53 AUD $8.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.4 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
13.50
mm
Spring Rate
0.98
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x10x0.4 mm - Steel
Material: Steel    Load at L1: 4.41 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-04-M (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$124.23 AUD
$262.80 AUD $124.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.4 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
13.50
mm
Extension Springs - 3x10x0.4 mm - Steel
Material: Steel    Spring Rate: 0.98 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-04-M (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$124.23 AUD
$262.80 AUD $124.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.45 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.450
mm
Max. Extension (L1)
12.20
mm
Spring Rate
2.26
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3x10x0.45 mm - Steel
Material: Steel    Load at L1: 6.47 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-045-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.45 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.450
mm
Max. Extension (L1)
12.20
mm
Extension Springs - 3x10x0.45 mm - Steel
Material: Steel    Spring Rate: 2.26 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 6.47 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-045-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
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Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
12.00
mm
Spring Rate
3.24
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x10x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 8.80 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.77 AUD
$10.53 AUD $8.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
12.00
mm
Extension Springs - 3x10x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 3.24 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0100-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.77 AUD
$10.53 AUD $8.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.5 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
12.00
mm
Spring Rate
3.24
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x10x0.5 mm - Steel
Material: Steel    Load at L1: 8.80 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-05-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x10x0.5 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
10
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
12.00
mm
Extension Springs - 3x10x0.5 mm - Steel
Material: Steel    Spring Rate: 3.24 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0100-05-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.25 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
38.00
mm
Spring Rate
0.05
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x15x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-025-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.25 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
38.00
mm
Extension Springs - 3x15x0.25 mm - Steel
Material: Steel    Spring Rate: 0.05 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-025-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
38.00
mm
Spring Rate
0.05
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x15x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 1.27 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-025-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$10.14 AUD
$12.16 AUD $10.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
38.00
mm
Extension Springs - 3x15x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.05 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-025-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$10.14 AUD
$12.16 AUD $10.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
31.60
mm
Spring Rate
0.12
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x15x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 2.25 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-03-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.32 AUD
$8.78 AUD $7.32 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
31.60
mm
Extension Springs - 3x15x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.12 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-03-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$7.32 AUD
$8.78 AUD $7.32 AUD
Priced, Stocked and Sold Per 5 Units
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Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.3 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
31.60
mm
Spring Rate
0.12
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x15x0.3 mm - Steel
Material: Steel    Load at L1: 2.25 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-03-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
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Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.3 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.300
mm
Max. Extension (L1)
31.60
mm
Extension Springs - 3x15x0.3 mm - Steel
Material: Steel    Spring Rate: 0.12 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-03-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
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Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.35 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
24.10
mm
Spring Rate
0.29
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x15x0.35 mm - Steel
Material: Steel    Load at L1: 3.33 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-035-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.35 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
24.10
mm
Extension Springs - 3x15x0.35 mm - Steel
Material: Steel    Spring Rate: 0.29 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-035-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
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Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
24.10
mm
Spring Rate
0.29
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 3.33 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.23 AUD
$9.87 AUD $8.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.350
mm
Max. Extension (L1)
24.10
mm
Extension Springs - 3x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.29 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-035-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.23 AUD
$9.87 AUD $8.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.4 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
21.00
mm
Spring Rate
0.59
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x15x0.4 mm - Steel
Material: Steel    Load at L1: 4.41 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-04-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.4 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
21.00
mm
Extension Springs - 3x15x0.4 mm - Steel
Material: Steel    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-04-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
21.00
mm
Spring Rate
0.59
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 4.41 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.23 AUD
$9.87 AUD $8.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.400
mm
Max. Extension (L1)
21.00
mm
Extension Springs - 3x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-04-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$8.23 AUD
$9.87 AUD $8.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.45 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.450
mm
Max. Extension (L1)
19.50
mm
Spring Rate
1.08
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3x15x0.45 mm - Steel
Material: Steel    Load at L1: 6.47 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-045-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.45 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.450
mm
Max. Extension (L1)
19.50
mm
Extension Springs - 3x15x0.45 mm - Steel
Material: Steel    Spring Rate: 1.08 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 6.47 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-045-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
18.70
mm
Spring Rate
1.77
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Load at L1: 8.80 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$9.14 AUD
$10.96 AUD $9.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
18.70
mm
Extension Springs - 3x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2 or 18-8) HRB80    Spring Rate: 1.77 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0300-0150-05-S4 (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$9.14 AUD
$10.96 AUD $9.14 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.5 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
18.70
mm
Spring Rate
1.77
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x15x0.5 mm - Steel
Material: Steel    Load at L1: 8.80 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-05-M (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$124.23 AUD
$262.80 AUD $124.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x15x0.5 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
15
mm
Wire Diameter (d)
0.500
mm
Max. Extension (L1)
18.70
mm
Extension Springs - 3x15x0.5 mm - Steel
Material: Steel    Spring Rate: 1.77 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0150-05-M (PK-100)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$124.23 AUD
$262.80 AUD $124.23 AUD
Priced, Stocked and Sold Per 100 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
3.00
mm
Overall Length (L0)
19.2
mm
Wire Diameter (d)
0.63
mm
Max. Extension (L1)
23.82
mm
Spring Rate
4.01
N/mm
Initial Tension (IT)
3.5
N
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2 or 18-8)    Load at L1: 21.83 N   
Category: Springs - Extension - Stainless Steel
Deleted Item. Available while stocks last.
Part Number: ES-0300-0192-06-S2 (Each)
2 Available Now | Item Discontinued - Up to 2 may be ordered online. No backorders. Please contact us if you need a larger quantity
$22.00 AUD
$41.80 AUD $22.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
3.00
mm
Overall Length (L0)
19.2
mm
Wire Diameter (d)
0.63
mm
Max. Extension (L1)
23.82
mm
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2 or 18-8)    Spring Rate: 4.01 N/mm    Initial Tension (IT): 3.5 N    Load at L1: 21.83 N   
Category: Springs - Extension - Stainless Steel
Deleted Item. Available while stocks last.
Part Number: ES-0300-0192-06-S2 (Each)
2 Available Now | Item Discontinued - Up to 2 may be ordered online. No backorders. Please contact us if you need a larger quantity
$22.00 AUD
$41.80 AUD $22.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 3x20x0.25 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
20
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
55.90
mm
Spring Rate
0.03
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x20x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0200-025-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3x20x0.25 mm Music Wire - Steel Spring
OD (D0)
3.00
mm
Overall Length (L0)
20
mm
Wire Diameter (d)
0.250
mm
Max. Extension (L1)
55.90
mm
Extension Springs - 3x20x0.25 mm - Steel
Material: Steel    Spring Rate: 0.03 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0300-0200-025-M (PK-5)
Out of Stock | Backorder Now | Backorder now for delivery around Sat, Jul 11, 2026
$6.41 AUD
$13.14 AUD $6.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.