Springs - Extension - Music Wire

Springs -> Extension -> Music Wire

There are 24 products in the sub-categories of Springs - Extension - Music Wire. Scroll down or follow the link to Springs - Extension - Music Wire in the products table to see all these items combined into a handy table with filters.

Category Details

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

  • 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.
  • Zinc Plated Spring Steel not recommended for applications exceeding 121 Deg C (250 Deg F).

Small Parts & Bearings

Additional resources:


A more comprehensive listing may be found in the Springs - Extension - Music Wire category on the MBA Minibearings main store.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
Extension Springs - 3.18x152.4x0.38 mm Music Wire - Steel Spring
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
0.38
mm

(Equiv. 0.015 in.)
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x152.4x0.38 mm - Steel
Material: Steel   
Part Number: ES-0318-1524-04-M (Each)
3 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$13.77 AUD
$13.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
Extension Springs - 3.18x152.4x0.38 mm Music Wire - Steel Spring
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
0.38
mm

(Equiv. 0.015 in.)
Extension Springs - 3.18x152.4x0.38 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-0318-1524-04-M (Each)
3 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$13.77 AUD
$13.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

3 Available Now. Backorder if more than 3.
Extension Springs - 3.18x203.2x0.38 mm Music Wire - Steel Spring
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Overall Length (L0)
203.2
mm

(Equiv. 8 in.)
Wire Diameter (d)
0.38
mm

(Equiv. 0.015 in.)
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x203.2x0.38 mm - Steel
Material: Steel   
Part Number: ES-0318-2032-04-M (Each)
5 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$12.68 AUD
$12.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 5 available can be backordered.
Extension Springs - 3.18x203.2x0.38 mm Music Wire - Steel Spring
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Overall Length (L0)
203.2
mm

(Equiv. 8 in.)
Wire Diameter (d)
0.38
mm

(Equiv. 0.015 in.)
Extension Springs - 3.18x203.2x0.38 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-0318-2032-04-M (Each)
5 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$12.68 AUD
$12.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

5 Available Now. Backorder if more than 5.
Extension Springs - 3.18x279.4x0.41 mm Music Wire - Steel Spring
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Overall Length (L0)
279.4
mm

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

(Equiv. 0.016 in.)
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x279.4x0.41 mm - Steel
Material: Steel   
Part Number: ES-0318-2794-04-M (Each)
8 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$11.41 AUD
$11.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 8 available can be backordered.
Extension Springs - 3.18x279.4x0.41 mm Music Wire - Steel Spring
OD (D0)
3.18
mm

(Equiv. 0.125 in.)
Overall Length (L0)
279.4
mm

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

(Equiv. 0.016 in.)
Extension Springs - 3.18x279.4x0.41 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-0318-2794-04-M (Each)
8 Available Now | Further orders can be expected around Sun, Jan 18, 2026
$11.41 AUD
$11.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

8 Available Now. Backorder if more than 8.
Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
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 Sun, Jan 18, 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.)
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 Sun, Jan 18, 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 - 4.57x12.7x0.56 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
12.7
mm

(Equiv. 0.5 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
18.540
mm
Spring Rate
1.839
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 4.57x12.7x0.56 mm - Steel
Material: Steel    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0127-06-M (Each)
1 Available Now | Further orders can be expected around Sun, Feb 22, 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 - 4.57x12.7x0.56 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
12.7
mm

(Equiv. 0.5 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
18.540
mm
Extension Springs - 4.57x12.7x0.56 mm - Steel
Material: Steel    Spring Rate: 1.839 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0127-06-M (Each)
1 Available Now | Further orders can be expected around Sun, Feb 22, 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 - 4.57x19.1x0.51 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
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 Sun, Feb 22, 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.)
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 Sun, Feb 22, 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 - 4.57x19.1x0.79 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

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

(Equiv. 0.752 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
24.890
mm
Spring Rate
4.750
N/mm
Initial Tension (IT)
2.7
N
Extension Springs - 4.57x19.1x0.79 mm - Steel
Material: Steel    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0191-08-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Sun, Feb 22, 2026
$11.68 AUD
$11.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 4.57x19.1x0.79 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

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

(Equiv. 0.752 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
24.890
mm
Extension Springs - 4.57x19.1x0.79 mm - Steel
Material: Steel    Spring Rate: 4.750 N/mm    Initial Tension (IT): 2.7 N    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0191-08-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Sun, Feb 22, 2026
$11.68 AUD
$11.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 4.57x50.8x0.51 mm Music Wire - Steel Spring
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
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 Sun, Feb 22, 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.)
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 Sun, Feb 22, 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.)
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 Sun, Jan 18, 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.)
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 Sun, Jan 18, 2026
$7.86 AUD
$7.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 5x20x0.5 mm Music Wire - Steel Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
31.70
mm
Spring Rate
0.28
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 5x20x0.5 mm - Steel
Material: Steel    Load at L1: 4.22 N   
Part Number: ES-0500-0200-05-M (PK-5)
3 units (15 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.41 AUD
$11.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Extension Springs - 5x20x0.5 mm Music Wire - Steel Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
31.70
mm
Extension Springs - 5x20x0.5 mm - Steel
Material: Steel    Spring Rate: 0.28 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.22 N   
Part Number: ES-0500-0200-05-M (PK-5)
3 units (15 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.41 AUD
$11.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

3 units (15 pcs) Available Now. Backorder if more than 3.
Extension Springs - 5x20x0.6 mm Music Wire - Steel Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.600
mm

(Equiv. 0.024 in.)
Max. Extension (L1)
28.90
mm
Spring Rate
0.78
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 5x20x0.6 mm - Steel
Material: Steel    Load at L1: 8.53 N   
Part Number: ES-0500-0200-06-M (PK-5)
2 units (10 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.41 AUD
$11.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Extension Springs - 5x20x0.6 mm Music Wire - Steel Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.600
mm

(Equiv. 0.024 in.)
Max. Extension (L1)
28.90
mm
Extension Springs - 5x20x0.6 mm - Steel
Material: Steel    Spring Rate: 0.78 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 8.53 N   
Part Number: ES-0500-0200-06-M (PK-5)
2 units (10 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.41 AUD
$11.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

2 units (10 pcs) Available Now. Backorder if more than 2.
Extension Springs - 5x20x0.7 mm Music Wire - Steel Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.700
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
26.90
mm
Spring Rate
1.77
N/mm
Initial Tension (IT)
2.4
N
Extension Springs - 5x20x0.7 mm - Steel
Material: Steel    Load at L1: 14.71 N   
Part Number: ES-0500-0200-07-M (PK-5)
3 units (15 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.41 AUD
$11.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Extension Springs - 5x20x0.7 mm Music Wire - Steel Spring
OD (D0)
5.00
mm

(Equiv. 0.197 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.700
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
26.90
mm
Extension Springs - 5x20x0.7 mm - Steel
Material: Steel    Spring Rate: 1.77 N/mm    Initial Tension (IT): 2.4 N    Load at L1: 14.71 N   
Part Number: ES-0500-0200-07-M (PK-5)
3 units (15 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.41 AUD
$11.41 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

3 units (15 pcs) Available Now. Backorder if more than 3.
Extension Springs - 6.1x19.1x0.56 mm Music Wire - Steel Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
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 Sun, Feb 22, 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.)
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 Sun, Feb 22, 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 - 6.1x44.5x0.56 mm Music Wire - Steel Spring
OD (D0)
6.10
mm

(Equiv. 0.24 in.)
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 Sun, Feb 22, 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.)
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 Sun, Feb 22, 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.)
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 Sun, Jan 18, 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.)
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 Sun, Jan 18, 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.)
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 Sun, Feb 22, 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.)
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 Sun, Feb 22, 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 - 9.53x279.4x0.79 mm Music Wire - Steel Spring
OD (D0)
9.53
mm

(Equiv. 0.375 in.)
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 Sun, Jan 18, 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.)
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 Sun, Jan 18, 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 - 10x30x1.6 mm Music Wire - Steel Spring
OD (D0)
10.00
mm

(Equiv. 0.394 in.)
Overall Length (L0)
30
mm

(Equiv. 1.181 in.)
Wire Diameter (d)
1.600
mm

(Equiv. 0.063 in.)
Max. Extension (L1)
35.20
mm
Spring Rate
10.89
N/mm
Initial Tension (IT)
20.6
N
Extension Springs - 10x30x1.6 mm - Steel
Material: Steel    Load at L1: 77.47 N   
Part Number: ES-1000-0300-16-M (PK-5)
18 units (90 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.77 AUD
$11.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 18 available can be backordered.
Extension Springs - 10x30x1.6 mm Music Wire - Steel Spring
OD (D0)
10.00
mm

(Equiv. 0.394 in.)
Overall Length (L0)
30
mm

(Equiv. 1.181 in.)
Wire Diameter (d)
1.600
mm

(Equiv. 0.063 in.)
Max. Extension (L1)
35.20
mm
Extension Springs - 10x30x1.6 mm - Steel
Material: Steel    Spring Rate: 10.89 N/mm    Initial Tension (IT): 20.6 N    Load at L1: 77.47 N   
Part Number: ES-1000-0300-16-M (PK-5)
18 units (90 pcs) Available Now | Further orders can be expected around Sun, Feb 01, 2026
$11.77 AUD
$11.77 AUD
Priced, Stocked and Sold Per 5 Units
Excludes GST and overseas Taxes & Duties
Quantity Required

18 units (90 pcs) Available Now. Backorder if more than 18.
Extension Springs - 11.1x114.3x0.71 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
11.10
mm

(Equiv. 0.437 in.)
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 Sun, Jan 18, 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.)
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 Sun, Jan 18, 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.)
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 Sun, Feb 22, 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.)
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 Sun, Feb 22, 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 - 12.7x119x1.58 mm Stainless Steel - Hard Drawn - Zinc Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
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.)
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.
Extension Springs - 12.7x279.4x1.19 mm Music Wire - Steel Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 12.7x279.4x1.19 mm - Steel
Material: Steel   
Part Number: ES-1270-2794-12-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 18, 2026
$24.68 AUD
$24.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 12.7x279.4x1.19 mm Music Wire - Steel Spring
OD (D0)
12.70
mm

(Equiv. 0.5 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
1.19
mm

(Equiv. 0.047 in.)
Extension Springs - 12.7x279.4x1.19 mm - Steel
Material: Steel    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.1 N   
Part Number: ES-1270-2794-12-M (Each)
Out of Stock | Backorder Now | Orders can be expected around Sun, Jan 18, 2026
$24.68 AUD
$24.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 16.51x57.2x1.6 mm Music Wire - Steel Spring
OD (D0)
16.51
mm

(Equiv. 0.65 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
1.60
mm

(Equiv. 0.063 in.)
Max. Extension (L1)
109.730
mm
Spring Rate
1.121
N/mm
Initial Tension (IT)
6.2
N
Extension Springs - 16.51x57.2x1.6 mm - Steel
Material: Steel    Load at L1: 65.830 N    End Type: Closed - Full Loop   
Part Number: ES-1651-0572-16-M (Each)
2 Available Now | Further orders can be expected around Sun, Feb 22, 2026
$7.59 AUD
$18.97 AUD $7.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 2 available can be backordered.
Extension Springs - 16.51x57.2x1.6 mm Music Wire - Steel Spring
OD (D0)
16.51
mm

(Equiv. 0.65 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
1.60
mm

(Equiv. 0.063 in.)
Max. Extension (L1)
109.730
mm
Extension Springs - 16.51x57.2x1.6 mm - Steel
Material: Steel    Spring Rate: 1.121 N/mm    Initial Tension (IT): 6.2 N    Load at L1: 65.830 N    End Type: Closed - Full Loop   
Part Number: ES-1651-0572-16-M (Each)
2 Available Now | Further orders can be expected around Sun, Feb 22, 2026
$7.59 AUD
$18.97 AUD $7.59 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

2 Available Now. Backorder if more than 2.
Extension Springs - 25.4x177.8x3.43 mm Stainless Steel - Zinc Plated Steel Spring
OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
177.8
mm

(Equiv. 7 in.)
Wire Diameter (d)
3.43
mm

(Equiv. 0.135 in.)
Extension Springs - 25.4x177.8x3.43 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Load at L1: 310.93 N   
Deleted Item. Available while stocks last.
Part Number: ES-2540-1778-34-M (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$6.00 AUD
$11.40 AUD $6.00 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 - 25.4x177.8x3.43 mm Stainless Steel - Zinc Plated Steel Spring
OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
177.8
mm

(Equiv. 7 in.)
Wire Diameter (d)
3.43
mm

(Equiv. 0.135 in.)
Extension Springs - 25.4x177.8x3.43 mm - Zinc Plated Steel
Material: Zinc Plated Steel    Load at L1: 310.93 N   
Deleted Item. Available while stocks last.
Part Number: ES-2540-1778-34-M (Each)
1 Available Now | Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity
$6.00 AUD
$11.40 AUD $6.00 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.