Springs - Extension - Stainless Steel

Springs -> Extension -> Stainless Steel

There are 453 products in the sub-categories of Springs - Extension - Stainless Steel. Scroll down or follow the link to Springs - Extension - Stainless Steel in the products table to see all these items combined into a handy table with filters.

Category Details

A selection of Stainless Steel Extension Springs. 300 gradd stainless steel selection, including 303, 304 and 316.

  • 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.
  • 302 Stainless springs not recommended for applications exceeding 260 Deg C (500 Deg F).
  • 302 stainless steel is slightly magnetic.

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Springs - Extension - Stainless Steel category on the Small Parts & Bearings online store.
OD (D0) Approx. Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
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, 18-8) HRB80    Load at L1: 1.27 N   
Part Number: ES-0300-0100-025-S4 (5 Pcs)
Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.05 AUD
$9.65 AUD $8.05 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0) Approx. Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
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, 18-8) HRB80    Spring Rate: 0.11 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0100-025-S4 (5 Pcs)
Extension Springs - 3x10x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.05 AUD
$9.65 AUD $8.05 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
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, 18-8) HRB80    Load at L1: 2.25 N   
Part Number: ES-0300-0100-03-S4 (5 Pcs)
Extension Springs - 3x10x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.05 AUD
$9.65 AUD $8.05 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
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, 18-8) HRB80    Spring Rate: 0.23 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0100-03-S4 (5 Pcs)
Extension Springs - 3x10x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.05 AUD
$9.65 AUD $8.05 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
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, 18-8) HRB80    Load at L1: 3.33 N   
Part Number: ES-0300-0100-035-S4 (5 Pcs)
Extension Springs - 3x10x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.05 AUD
$9.65 AUD $8.05 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
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, 18-8) HRB80    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Part Number: ES-0300-0100-035-S4 (5 Pcs)
Extension Springs - 3x10x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.05 AUD
$9.65 AUD $8.05 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
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, 18-8) HRB80    Load at L1: 4.41 N   
Part Number: ES-0300-0100-04-S4 (5 Pcs)
Extension Springs - 3x10x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.95 AUD
$11.95 AUD $9.95 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
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, 18-8) HRB80    Spring Rate: 0.98 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Part Number: ES-0300-0100-04-S4 (5 Pcs)
Extension Springs - 3x10x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.95 AUD
$11.95 AUD $9.95 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
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, 18-8) HRB80    Load at L1: 8.80 N   
Part Number: ES-0300-0100-05-S4 (5 Pcs)
Extension Springs - 3x10x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.95 AUD
$11.95 AUD $9.95 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
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, 18-8) HRB80    Spring Rate: 3.24 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Part Number: ES-0300-0100-05-S4 (5 Pcs)
Extension Springs - 3x10x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.95 AUD
$11.95 AUD $9.95 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
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, 18-8) HRB80    Load at L1: 1.27 N   
Part Number: ES-0300-0150-025-S4 (5 Pcs)
Extension Springs - 3x15x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$11.68 AUD
$14.02 AUD $11.68 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
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, 18-8) HRB80    Spring Rate: 0.05 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0150-025-S4 (5 Pcs)
Extension Springs - 3x15x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$11.68 AUD
$14.02 AUD $11.68 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
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, 18-8) HRB80    Load at L1: 2.25 N   
Part Number: ES-0300-0150-03-S4 (5 Pcs)
Extension Springs - 3x15x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.23 AUD
$9.87 AUD $8.23 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
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, 18-8) HRB80    Spring Rate: 0.12 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0150-03-S4 (5 Pcs)
Extension Springs - 3x15x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$8.23 AUD
$9.87 AUD $8.23 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
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, 18-8) HRB80    Load at L1: 3.33 N   
Part Number: ES-0300-0150-035-S4 (5 Pcs)
Extension Springs - 3x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.32 AUD
$11.18 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
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, 18-8) HRB80    Spring Rate: 0.29 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Part Number: ES-0300-0150-035-S4 (5 Pcs)
Extension Springs - 3x15x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.32 AUD
$11.18 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
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, 18-8) HRB80    Load at L1: 4.41 N   
Part Number: ES-0300-0150-04-S4 (5 Pcs)
Extension Springs - 3x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.32 AUD
$11.18 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
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, 18-8) HRB80    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Part Number: ES-0300-0150-04-S4 (5 Pcs)
Extension Springs - 3x15x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.32 AUD
$11.18 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
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, 18-8) HRB80    Load at L1: 8.80 N   
Part Number: ES-0300-0150-05-S4 (5 Pcs)
Extension Springs - 3x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$10.41 AUD
$12.49 AUD $10.41 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
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, 18-8) HRB80    Spring Rate: 1.77 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Part Number: ES-0300-0150-05-S4 (5 Pcs)
Extension Springs - 3x15x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$10.41 AUD
$12.49 AUD $10.41 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
19.2
mm

(Equiv. 0.756 in.)
Wire Diameter (d)
0.63
mm

(Equiv. 0.025 in.)
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, 18-8)    Load at L1: 21.83 N   
Part Number: ES-0300-0192-06-S2
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
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
Quantity Required

2 Available Now. These are priced to quit. Please contact us for a quote if you require more.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
19.2
mm

(Equiv. 0.756 in.)
Wire Diameter (d)
0.63
mm

(Equiv. 0.025 in.)
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, 18-8)    Spring Rate: 4.01 N/mm    Initial Tension (IT): 3.5 N    Load at L1: 21.83 N   
Part Number: ES-0300-0192-06-S2
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
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
Quantity Required

2 Available Now. These are priced to quit. Please contact us for a quote if you require more.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
55.90
mm
Spring Rate
0.03
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x20x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 1.27 N   
Part Number: ES-0300-0200-025-S4 (5 Pcs)
Extension Springs - 3x20x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.50 AUD
$11.40 AUD $9.50 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
55.90
mm
Extension Springs - 3x20x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
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: 1.27 N   
Part Number: ES-0300-0200-025-S4 (5 Pcs)
Extension Springs - 3x20x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.50 AUD
$11.40 AUD $9.50 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
45.00
mm
Spring Rate
0.08
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x20x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 2.25 N   
Part Number: ES-0300-0200-03-S4 (5 Pcs)
Extension Springs - 3x20x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$11.23 AUD
$13.47 AUD $11.23 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
45.00
mm
Extension Springs - 3x20x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.08 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0200-03-S4 (5 Pcs)
Extension Springs - 3x20x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$11.23 AUD
$13.47 AUD $11.23 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
29.00
mm
Spring Rate
0.39
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x20x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 4.41 N   
Part Number: ES-0300-0200-04-S4 (5 Pcs)
Extension Springs - 3x20x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.32 AUD
$11.18 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
29.00
mm
Extension Springs - 3x20x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.39 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Part Number: ES-0300-0200-04-S4 (5 Pcs)
Extension Springs - 3x20x0.4 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$9.32 AUD
$11.18 AUD $9.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
72.90
mm
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x25x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 1.27 N   
Part Number: ES-0300-0250-025-S4 (5 Pcs)
Extension Springs - 3x25x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$12.32 AUD
$14.78 AUD $12.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
72.90
mm
Extension Springs - 3x25x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0250-025-S4 (5 Pcs)
Extension Springs - 3x25x0.25 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$12.32 AUD
$14.78 AUD $12.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
58.30
mm
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x25x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 2.25 N   
Part Number: ES-0300-0250-03-S4 (5 Pcs)
Extension Springs - 3x25x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$12.14 AUD
$14.56 AUD $12.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
58.30
mm
Extension Springs - 3x25x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0250-03-S4 (5 Pcs)
Extension Springs - 3x25x0.3 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$12.14 AUD
$14.56 AUD $12.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
44.50
mm
Spring Rate
0.14
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x25x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 3.33 N   
Part Number: ES-0300-0250-035-S4 (50 Pcs)
Extension Springs - 3x25x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$118.68 AUD
$142.42 AUD $118.68 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
44.50
mm
Extension Springs - 3x25x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.14 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Part Number: ES-0300-0250-035-S4 (50 Pcs)
Extension Springs - 3x25x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$118.68 AUD
$142.42 AUD $118.68 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
31.80
mm
Spring Rate
0.98
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 8.80 N   
Part Number: ES-0300-0250-05-S4 (50 Pcs)
Extension Springs - 3x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$118.68 AUD
$142.42 AUD $118.68 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Approx. Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
31.80
mm
Extension Springs - 3x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.98 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Part Number: ES-0300-0250-05-S4 (50 Pcs)
Extension Springs - 3x25x0.5 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$118.68 AUD
$142.42 AUD $118.68 AUD
Per 50
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.05
mm

(Equiv. 0.12 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
30.230
mm
Spring Rate
0.823
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x19.1x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-05-M
Extension Springs - 3.05x19.1x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.18 AUD $4.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.05
mm

(Equiv. 0.12 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
30.230
mm
Extension Springs - 3.05x19.1x0.46 mm - Steel
Material: Steel    Spring Rate: 0.823 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-05-M
Extension Springs - 3.05x19.1x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.18 AUD $4.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.05
mm

(Equiv. 0.12 in.)
Approx. Overall Length (L0)
25.4
mm

(Equiv. 1 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
56.640
mm
Spring Rate
0.140
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 3.05x25.4x0.36 mm - Steel
Material: Steel    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0254-04-M
Extension Springs - 3.05x25.4x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.11 AUD $4.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.05
mm

(Equiv. 0.12 in.)
Approx. Overall Length (L0)
25.4
mm

(Equiv. 1 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
56.640
mm
Extension Springs - 3.05x25.4x0.36 mm - Steel
Material: Steel    Spring Rate: 0.140 N/mm    Initial Tension (IT): 0.4 N    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0254-04-M
Extension Springs - 3.05x25.4x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.11 AUD $4.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.05
mm

(Equiv. 0.12 in.)
Approx. Overall Length (L0)
38.1
mm

(Equiv. 1.5 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
89.150
mm
Spring Rate
0.088
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 3.05x38.1x0.36 mm - Steel
Material: Steel    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0381-04-M
Extension Springs - 3.05x38.1x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.05 AUD
$9.58 AUD $5.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.05
mm

(Equiv. 0.12 in.)
Approx. Overall Length (L0)
38.1
mm

(Equiv. 1.5 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
89.150
mm
Extension Springs - 3.05x38.1x0.36 mm - Steel
Material: Steel    Spring Rate: 0.088 N/mm    Initial Tension (IT): 0.4 N    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0381-04-M
Extension Springs - 3.05x38.1x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.05 AUD
$9.58 AUD $5.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Approx. Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
0.33
mm

(Equiv. 0.013 in.)
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 3.18x508x0.33 mm - Stainless Steel
Material: Stainless Steel   
Part Number: ES-0318-5080-03-S2
Extension Springs - 3.18x508x0.33 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$26.14 AUD
$31.36 AUD $26.14 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Approx. Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
0.33
mm

(Equiv. 0.013 in.)
Extension Springs - 3.18x508x0.33 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.1 N   
Part Number: ES-0318-5080-03-S2
Extension Springs - 3.18x508x0.33 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$26.14 AUD
$31.36 AUD $26.14 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Approx. Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
0.43
mm

(Equiv. 0.017 in.)
Spring Rate
0.25
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3.18x508x0.43 mm - Stainless Steel
Material: Stainless Steel   
Part Number: ES-0318-5080-04-S2
Extension Springs - 3.18x508x0.43 mm - Stainless Steel Spring
1 Available Now | Further orders can be expected around Thu, Sep 18, 2025
$39.05 AUD
$74.80 AUD $39.05 AUD
Each
Quantity Required

1 Available Now. Backorder if more than 1.
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Approx. Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
0.43
mm

(Equiv. 0.017 in.)
Extension Springs - 3.18x508x0.43 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 0.25 N/mm    Initial Tension (IT): 0.3 N   
Part Number: ES-0318-5080-04-S2
Extension Springs - 3.18x508x0.43 mm - Stainless Steel Spring
1 Available Now | Further orders can be expected around Thu, Sep 18, 2025
$39.05 AUD
$74.80 AUD $39.05 AUD
Each
Quantity Required

1 Available Now. Backorder if more than 1.
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Approx. Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Spring Rate
0.61
N/mm
Initial Tension (IT)
0.6
N
Extension Springs - 3.18x508x0.51 mm - Stainless Steel
Material: Stainless Steel   
Part Number: ES-0318-5080-05-S2
Extension Springs - 3.18x508x0.51 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$33.32 AUD
$39.98 AUD $33.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Approx. Overall Length (L0)
508.0
mm

(Equiv. 20 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Extension Springs - 3.18x508x0.51 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 0.61 N/mm    Initial Tension (IT): 0.6 N   
Part Number: ES-0318-5080-05-S2
Extension Springs - 3.18x508x0.51 mm - Stainless Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$33.32 AUD
$39.98 AUD $33.32 AUD
Each
Quantity Required

Backorder: Out of Stock.