Springs - Extension - Stainless Steel

Springs -> Extension -> Stainless Steel

There are 28 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.

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Springs - Extension - Stainless Steel category on the MBA Minibearings main store.
OD (D0) Approx. Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
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   
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.
OD (D0) Approx. Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
Extension Springs - 3x19.2x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
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   
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 - 3.18x508x0.43 mm - Stainless Steel Spring
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 (Each)
1 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$39.05 AUD
$74.80 AUD $39.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Extension Springs - 3.18x508x0.43 mm - Stainless Steel Spring
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 (Each)
1 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$39.05 AUD
$74.80 AUD $39.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
3.50
mm

(Equiv. 0.138 in.)
Approx. Overall Length (L0)
11.1
mm

(Equiv. 0.437 in.)
Wire Diameter (d)
0.70
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
13.46
mm
Spring Rate
9.25
N/mm
Initial Tension (IT)
3.7
N
Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 25.58 N   
Deleted Item. Available while stocks last.
Part Number: ES-0350-0111-07-S2 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$27.21 AUD
$51.70 AUD $27.21 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
3.50
mm

(Equiv. 0.138 in.)
Approx. Overall Length (L0)
11.1
mm

(Equiv. 0.437 in.)
Wire Diameter (d)
0.70
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
13.46
mm
Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 9.25 N/mm    Initial Tension (IT): 3.7 N    Load at L1: 25.58 N   
Deleted Item. Available while stocks last.
Part Number: ES-0350-0111-07-S2 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$27.21 AUD
$51.70 AUD $27.21 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
Approx. Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
0.41
mm

(Equiv. 0.016 in.)
Spring Rate
0.01
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.96x279.4x0.41 mm - Steel
Material: Steel   
Part Number: ES-0396-2794-04-M (Each)
9 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$18.05 AUD
$18.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 9 available can be backordered.
Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
Approx. Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
0.41
mm

(Equiv. 0.016 in.)
Extension Springs - 3.96x279.4x0.41 mm - Steel
Material: Steel    Spring Rate: 0.01 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-0396-2794-04-M (Each)
9 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$18.05 AUD
$18.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

9 Available Now. Backorder if more than 9.
Extension Springs - 4x20x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
4.00
mm

(Equiv. 0.157 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
44.10
mm
Spring Rate
0.08
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 4x20x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 2.26 N   
Part Number: ES-0400-0200-035-S4 (PK-5)
4 units (20 pcs) Available Now | Further orders can be expected around Tue, Feb 03, 2026
$5.23 AUD
$9.84 AUD $5.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Extension Springs - 4x20x0.35 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
4.00
mm

(Equiv. 0.157 in.)
Approx. Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
44.10
mm
Extension Springs - 4x20x0.35 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): 0.2 N    Load at L1: 2.26 N   
Part Number: ES-0400-0200-035-S4 (PK-5)
4 units (20 pcs) Available Now | Further orders can be expected around Tue, Feb 03, 2026
$5.23 AUD
$9.84 AUD $5.23 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

4 units (20 pcs) Available Now. Backorder if more than 4.
Extension Springs - 4.5x12.1x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
4.50
mm

(Equiv. 0.177 in.)
Approx. Overall Length (L0)
12.1
mm

(Equiv. 0.476 in.)
Wire Diameter (d)
0.63
mm

(Equiv. 0.025 in.)
Max. Extension (L1)
17.75
mm
Spring Rate
2.31
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 4.5x12.1x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 15.25 N   
Deleted Item. Available while stocks last.
Part Number: ES-0450-0121-06-S2 (PK-4)
1 pack (4 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$26.85 AUD
$51.02 AUD $26.85 AUD
Priced, Stocked and Sold Per 4 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (4 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 4.5x12.1x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
4.50
mm

(Equiv. 0.177 in.)
Approx. Overall Length (L0)
12.1
mm

(Equiv. 0.476 in.)
Wire Diameter (d)
0.63
mm

(Equiv. 0.025 in.)
Max. Extension (L1)
17.75
mm
Extension Springs - 4.5x12.1x0.63 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 2.31 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 15.25 N   
Deleted Item. Available while stocks last.
Part Number: ES-0450-0121-06-S2 (PK-4)
1 pack (4 pcs) Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$26.85 AUD
$51.02 AUD $26.85 AUD
Priced, Stocked and Sold Per 4 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

1 pack (4 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 4.57x15.8x0.79 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Approx. Overall Length (L0)
15.8
mm

(Equiv. 0.622 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
20.066
mm
Spring Rate
5.52
N/mm
Initial Tension (IT)
4.0
N
Extension Springs - 4.57x15.8x0.79 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 5.66 N   
Part Number: ES-0457-0158-08-S2 (Each)
2 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$7.14 AUD
$13.29 AUD $7.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Extension Springs - 4.57x15.8x0.79 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Approx. Overall Length (L0)
15.8
mm

(Equiv. 0.622 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
20.066
mm
Extension Springs - 4.57x15.8x0.79 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 5.52 N/mm    Initial Tension (IT): 4.0 N    Load at L1: 5.66 N   
Part Number: ES-0457-0158-08-S2 (Each)
2 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$7.14 AUD
$13.29 AUD $7.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Extension Springs - 4.57x19.1x0.51 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
37.080
mm
Spring Rate
0.473
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 4.57x19.1x0.51 mm - Steel
Material: Steel    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0191-05-M (Each)
1 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.05 AUD
$9.83 AUD $4.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Extension Springs - 4.57x19.1x0.51 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
37.080
mm
Extension Springs - 4.57x19.1x0.51 mm - Steel
Material: Steel    Spring Rate: 0.473 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0191-05-M (Each)
1 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.05 AUD
$9.83 AUD $4.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Extension Springs - 4.57x50.8x0.51 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Approx. Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
122.170
mm
Spring Rate
0.123
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 4.57x50.8x0.51 mm - Steel
Material: Steel    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-05-M (Each)
2 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.23 AUD
$10.26 AUD $4.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Extension Springs - 4.57x50.8x0.51 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Approx. Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
122.170
mm
Extension Springs - 4.57x50.8x0.51 mm - Steel
Material: Steel    Spring Rate: 0.123 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-05-M (Each)
2 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.23 AUD
$10.26 AUD $4.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Extension Springs - 4.75x38.1x0.64 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
4.75
mm

(Equiv. 0.187 in.)
Approx. Overall Length (L0)
38.1
mm

(Equiv. 1.5 in.)
Wire Diameter (d)
0.64
mm

(Equiv. 0.025 in.)
Spring Rate
0.46
N/mm
Initial Tension (IT)
0.5
N
Extension Springs - 4.75x38.1x0.64 mm - Steel - Zinc
Material: Steel - Zinc   
Part Number: ES-0475-0381-06-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
$7.86 AUD
$7.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 4.75x38.1x0.64 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
4.75
mm

(Equiv. 0.187 in.)
Approx. Overall Length (L0)
38.1
mm

(Equiv. 1.5 in.)
Wire Diameter (d)
0.64
mm

(Equiv. 0.025 in.)
Extension Springs - 4.75x38.1x0.64 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.46 N/mm    Initial Tension (IT): 0.5 N   
Part Number: ES-0475-0381-06-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
$7.86 AUD
$7.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 5x15x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
23.20
mm
Spring Rate
0.33
N/mm
Initial Tension (IT)
0.5
N
Extension Springs - 5x15x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Load at L1: 3.24 N   
Part Number: ES-0500-0150-045-S4 (PK-5)
8 units (40 pcs) Available Now | Further orders can be expected around Tue, Feb 03, 2026
$6.32 AUD
$7.58 AUD $6.32 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 8 available can be backordered.
Extension Springs - 5x15x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80 Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Approx. Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
23.20
mm
Extension Springs - 5x15x0.45 mm - Stainless Steel 304 Similar to A2, 18-8 HRB80
Material: Stainless Steel 304 (Similar to A2, 18-8) HRB80    Spring Rate: 0.33 N/mm    Initial Tension (IT): 0.5 N    Load at L1: 3.24 N   
Part Number: ES-0500-0150-045-S4 (PK-5)
8 units (40 pcs) Available Now | Further orders can be expected around Tue, Feb 03, 2026
$6.32 AUD
$7.58 AUD $6.32 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

8 units (40 pcs) Available Now. Backorder if more than 8.
Extension Springs - 5.5x19.8x0.8 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
5.50
mm

(Equiv. 0.217 in.)
Approx. Overall Length (L0)
19.8
mm

(Equiv. 0.78 in.)
Wire Diameter (d)
0.80
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
30.00
mm
Spring Rate
2.08
N/mm
Initial Tension (IT)
4.0
N
Extension Springs - 5.5x19.8x0.8 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 25.17 N   
Deleted Item. Available while stocks last.
Part Number: ES-0550-0198-08-S2 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$27.21 AUD
$51.70 AUD $27.21 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 5.5x19.8x0.8 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
5.50
mm

(Equiv. 0.217 in.)
Approx. Overall Length (L0)
19.8
mm

(Equiv. 0.78 in.)
Wire Diameter (d)
0.80
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
30.00
mm
Extension Springs - 5.5x19.8x0.8 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 2.08 N/mm    Initial Tension (IT): 4.0 N    Load at L1: 25.17 N   
Deleted Item. Available while stocks last.
Part Number: ES-0550-0198-08-S2 (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$27.21 AUD
$51.70 AUD $27.21 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 5.5x27.7x0.5 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
5.50
mm

(Equiv. 0.217 in.)
Approx. Overall Length (L0)
27.7
mm

(Equiv. 1.091 in.)
Wire Diameter (d)
0.50
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
80.00
mm
Spring Rate
0.26
N/mm
Initial Tension (IT)
2.1
N
Extension Springs - 5.5x27.7x0.5 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 6.50 N    End Type: Closed - Full Loop   
Part Number: ES-0550-0277-05-S2 (Each)
39 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$7.41 AUD
$13.85 AUD $7.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 39 available can be backordered.
Extension Springs - 5.5x27.7x0.5 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
5.50
mm

(Equiv. 0.217 in.)
Approx. Overall Length (L0)
27.7
mm

(Equiv. 1.091 in.)
Wire Diameter (d)
0.50
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
80.00
mm
Extension Springs - 5.5x27.7x0.5 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 0.26 N/mm    Initial Tension (IT): 2.1 N    Load at L1: 6.50 N    End Type: Closed - Full Loop   
Part Number: ES-0550-0277-05-S2 (Each)
39 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$7.41 AUD
$13.85 AUD $7.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

39 Available Now. Backorder if more than 39.
Extension Springs - 6.1x19.1x0.56 mm Music Wire - Steel Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
38.860
mm
Spring Rate
0.420
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 6.1x19.1x0.56 mm - Steel
Material: Steel    Load at L1: 9.210 N    End Type: Closed - Full Loop   
Part Number: ES-0610-0191-06-M (Each)
4 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.23 AUD
$10.22 AUD $4.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Extension Springs - 6.1x19.1x0.56 mm Music Wire - Steel Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
38.860
mm
Extension Springs - 6.1x19.1x0.56 mm - Steel
Material: Steel    Spring Rate: 0.420 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.210 N    End Type: Closed - Full Loop   
Part Number: ES-0610-0191-06-M (Each)
4 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.23 AUD
$10.22 AUD $4.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

4 Available Now. Backorder if more than 4.
Extension Springs - 6.1x19.1x0.66 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.66
mm

(Equiv. 0.026 in.)
Max. Extension (L1)
32.766
mm
Spring Rate
0.82
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 6.1x19.1x0.66 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 2.75 N   
Part Number: ES-0610-0191-06-S2 (Each)
2 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$13.50 AUD
$13.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Extension Springs - 6.1x19.1x0.66 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
Approx. Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.66
mm

(Equiv. 0.026 in.)
Max. Extension (L1)
32.766
mm
Extension Springs - 6.1x19.1x0.66 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 0.82 N/mm    Initial Tension (IT): 0.4 N    Load at L1: 2.75 N   
Part Number: ES-0610-0191-06-S2 (Each)
2 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$13.50 AUD
$13.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Extension Springs - 6.1x44.5x0.56 mm Music Wire - Steel Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
Approx. Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
131.060
mm
Spring Rate
0.105
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 6.1x44.5x0.56 mm - Steel
Material: Steel    Load at L1: 9.210 N    End Type: Closed - Full Loop   
Part Number: ES-0610-0445-06-M (Each)
4 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.50 AUD
$10.94 AUD $4.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 4 available can be backordered.
Extension Springs - 6.1x44.5x0.56 mm Music Wire - Steel Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
Approx. Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
131.060
mm
Extension Springs - 6.1x44.5x0.56 mm - Steel
Material: Steel    Spring Rate: 0.105 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.210 N    End Type: Closed - Full Loop   
Part Number: ES-0610-0445-06-M (Each)
4 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$4.50 AUD
$10.94 AUD $4.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

4 Available Now. Backorder if more than 4.
Extension Springs - 6.35x47.6x0.58 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
6.35
mm

(Equiv. 0.25 in.)
Approx. Overall Length (L0)
47.6
mm

(Equiv. 1.874 in.)
Wire Diameter (d)
0.58
mm

(Equiv. 0.023 in.)
Spring Rate
0.09
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 6.35x47.6x0.58 mm - Steel - Zinc
Material: Steel - Zinc   
Part Number: ES-0635-0476-06-M (Each)
20 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$9.95 AUD
$9.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 20 available can be backordered.
Extension Springs - 6.35x47.6x0.58 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
6.35
mm

(Equiv. 0.25 in.)
Approx. Overall Length (L0)
47.6
mm

(Equiv. 1.874 in.)
Wire Diameter (d)
0.58
mm

(Equiv. 0.023 in.)
Extension Springs - 6.35x47.6x0.58 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.09 N/mm    Initial Tension (IT): 0.1 N   
Part Number: ES-0635-0476-06-M (Each)
20 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$9.95 AUD
$9.95 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

20 Available Now. Backorder if more than 20.
Extension Springs - 7.62x76.2x0.89 mm Music Wire - Steel Spring
OD (D0)
7.62
mm

(Equiv. 0.3 in.)
Approx. Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
150.880
mm
Spring Rate
0.385
N/mm
Initial Tension (IT)
2.9
N
Extension Springs - 7.62x76.2x0.89 mm - Steel
Material: Steel    Load at L1: 32.030 N    End Type: Closed - Full Loop   
Part Number: ES-0762-0762-09-M (Each)
5 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$5.50 AUD
$13.68 AUD $5.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Extension Springs - 7.62x76.2x0.89 mm Music Wire - Steel Spring
OD (D0)
7.62
mm

(Equiv. 0.3 in.)
Approx. Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
150.880
mm
Extension Springs - 7.62x76.2x0.89 mm - Steel
Material: Steel    Spring Rate: 0.385 N/mm    Initial Tension (IT): 2.9 N    Load at L1: 32.030 N    End Type: Closed - Full Loop   
Part Number: ES-0762-0762-09-M (Each)
5 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$5.50 AUD
$13.68 AUD $5.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Extension Springs - 9.14x50.8x1.14 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
9.14
mm

(Equiv. 0.36 in.)
Approx. Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
1.14
mm

(Equiv. 0.045 in.)
Max. Extension (L1)
88.646
mm
Spring Rate
0.91
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 9.14x50.8x1.14 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 8.50 N   
Part Number: ES-0914-0508-11-S2 (Each)
1 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$15.32 AUD
$15.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Extension Springs - 9.14x50.8x1.14 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
9.14
mm

(Equiv. 0.36 in.)
Approx. Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
1.14
mm

(Equiv. 0.045 in.)
Max. Extension (L1)
88.646
mm
Extension Springs - 9.14x50.8x1.14 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 0.91 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 8.50 N   
Part Number: ES-0914-0508-11-S2 (Each)
1 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$15.32 AUD
$15.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Extension Springs - 9.53x279.4x0.79 mm Music Wire - Steel Spring
OD (D0)
9.53
mm

(Equiv. 0.375 in.)
Approx. Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 9.53x279.4x0.79 mm - Steel
Material: Steel   
Part Number: ES-0953-2794-08-M (Each)
2 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$18.50 AUD
$18.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Extension Springs - 9.53x279.4x0.79 mm Music Wire - Steel Spring
OD (D0)
9.53
mm

(Equiv. 0.375 in.)
Approx. Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Extension Springs - 9.53x279.4x0.79 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-0953-2794-08-M (Each)
2 Available Now | Further orders can be expected around Tue, Jan 20, 2026
$18.50 AUD
$18.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Extension Springs - 11.1x114.3x0.71 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Approx. Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 11.1x114.3x0.71 mm - Steel - Zinc
Material: Steel - Zinc   
Part Number: ES-1110-1143-07-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
$13.50 AUD
$13.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 11.1x114.3x0.71 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
11.10
mm

(Equiv. 0.437 in.)
Approx. Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Extension Springs - 11.1x114.3x0.71 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-1110-1143-07-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Tue, Jan 20, 2026
$13.50 AUD
$13.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 12.7x44.5x1.6 mm Music Wire - Steel Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Approx. Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
1.60
mm

(Equiv. 0.063 in.)
Max. Extension (L1)
67.560
mm
Spring Rate
3.270
N/mm
Initial Tension (IT)
7.6
N
Extension Springs - 12.7x44.5x1.6 mm - Steel
Material: Steel    Load at L1: 83.630 N    End Type: Closed - Full Loop   
Part Number: ES-1270-0445-16-M (Each)
1 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$6.59 AUD
$16.38 AUD $6.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Extension Springs - 12.7x44.5x1.6 mm Music Wire - Steel Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Approx. Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
1.60
mm

(Equiv. 0.063 in.)
Max. Extension (L1)
67.560
mm
Extension Springs - 12.7x44.5x1.6 mm - Steel
Material: Steel    Spring Rate: 3.270 N/mm    Initial Tension (IT): 7.6 N    Load at L1: 83.630 N    End Type: Closed - Full Loop   
Part Number: ES-1270-0445-16-M (Each)
1 Available Now | Further orders can be expected around Tue, Feb 24, 2026
$6.59 AUD
$16.38 AUD $6.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Extension Springs - 12.7x63.5x1.4 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Approx. Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
1.40
mm

(Equiv. 0.055 in.)
Max. Extension (L1)
122.428
mm
Spring Rate
0.74
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 12.7x63.5x1.4 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Load at L1: 10.91 N   
Part Number: ES-1270-0635-14-S2 (Each)
1 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$21.59 AUD
$21.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 1 available can be backordered.
Extension Springs - 12.7x63.5x1.4 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Approx. Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
1.40
mm

(Equiv. 0.055 in.)
Max. Extension (L1)
122.428
mm
Extension Springs - 12.7x63.5x1.4 mm - Stainless Steel 302/304 Similar to A2, 18-8
Material: Stainless Steel 302/304 (Similar to A2, 18-8)    Spring Rate: 0.74 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 10.91 N   
Part Number: ES-1270-0635-14-S2 (Each)
1 Available Now | Further orders can be expected around Thu, Feb 05, 2026
$21.59 AUD
$21.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Extension Springs - 12.7x119x1.58 mm Stainless Steel - Hard Drawn - Zinc Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Approx. Overall Length (L0)
119.0
mm

(Equiv. 4.685 in.)
Wire Diameter (d)
1.58
mm

(Equiv. 0.062 in.)
Spring Rate
0.72
N/mm
Extension Springs - 12.7x119x1.58 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc   
Deleted Item. Available while stocks last.
Part Number: ES-1270-1190-16-M (Each)
3 Available Now | Item Discontinued - Up to 3 may be ordered online. No backorders. Please contact us if you need a larger quantity
$7.00 AUD
$13.30 AUD $7.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. These are priced to quit. Please contact us for a quote if you require more.
Extension Springs - 12.7x119x1.58 mm Stainless Steel - Hard Drawn - Zinc Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Approx. Overall Length (L0)
119.0
mm

(Equiv. 4.685 in.)
Wire Diameter (d)
1.58
mm

(Equiv. 0.062 in.)
Extension Springs - 12.7x119x1.58 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc    Spring Rate: 0.72 N/mm   
Deleted Item. Available while stocks last.
Part Number: ES-1270-1190-16-M (Each)
3 Available Now | Item Discontinued - Up to 3 may be ordered online. No backorders. Please contact us if you need a larger quantity
$7.00 AUD
$13.30 AUD $7.00 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. These are priced to quit. Please contact us for a quote if you require more.