Collection: Springs - Extension

Springs -> Extension
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
Extension Springs - 3.05x38.1x0.36 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.36
mm
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   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0381-04-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.68 AUD
Regular price $10.66 AUD Sale price $5.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
Extension Springs - 3.05x38.1x0.36 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.36
mm
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   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0381-04-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.68 AUD
Regular price $10.66 AUD Sale price $5.68 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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Extension Springs - 3.05x38.1x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
62.740
mm
Spring Rate
0.350
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x38.1x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0381-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.77 AUD
Regular price $10.91 AUD Sale price $5.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x38.1x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
62.740
mm
Extension Springs - 3.05x38.1x0.46 mm - Steel
Material: Steel    Spring Rate: 0.350 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0381-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.77 AUD
Regular price $10.91 AUD Sale price $5.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x38.1x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
53.090
mm
Spring Rate
1.051
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x38.1x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0381-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.86 AUD
Regular price $11.12 AUD Sale price $5.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x38.1x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
53.090
mm
Extension Springs - 3.05x38.1x0.56 mm - Steel
Material: Steel    Spring Rate: 1.051 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0381-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.86 AUD
Regular price $11.12 AUD Sale price $5.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x44.5x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
44.5
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
73.660
mm
Spring Rate
0.298
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x44.5x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0445-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.86 AUD
Regular price $11.12 AUD Sale price $5.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x44.5x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
44.5
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
73.660
mm
Extension Springs - 3.05x44.5x0.46 mm - Steel
Material: Steel    Spring Rate: 0.298 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0445-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $5.86 AUD
Regular price $11.12 AUD Sale price $5.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x44.5x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
44.5
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
62.230
mm
Spring Rate
0.876
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x44.5x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0445-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.05 AUD
Regular price $11.38 AUD Sale price $6.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x44.5x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
44.5
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
62.230
mm
Extension Springs - 3.05x44.5x0.56 mm - Steel
Material: Steel    Spring Rate: 0.876 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0445-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.05 AUD
Regular price $11.38 AUD Sale price $6.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x50.8x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
50.8
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
84.840
mm
Spring Rate
2.450
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x50.8x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0508-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.05 AUD
Regular price $11.38 AUD Sale price $6.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x50.8x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
50.8
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
84.840
mm
Extension Springs - 3.05x50.8x0.46 mm - Steel
Material: Steel    Spring Rate: 2.450 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0508-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.05 AUD
Regular price $11.38 AUD Sale price $6.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x50.8x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
50.8
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
71.630
mm
Spring Rate
0.753
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x50.8x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0508-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.14 AUD
Regular price $11.59 AUD Sale price $6.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x50.8x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
50.8
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
71.630
mm
Extension Springs - 3.05x50.8x0.56 mm - Steel
Material: Steel    Spring Rate: 0.753 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0508-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.14 AUD
Regular price $11.59 AUD Sale price $6.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x57.2x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
57.2
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
98.810
mm
Spring Rate
0.228
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x57.2x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0572-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.14 AUD
Regular price $11.59 AUD Sale price $6.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x57.2x0.46 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
57.2
mm
Wire Diameter (d)
0.46
mm
Max. Extension (L1)
98.810
mm
Extension Springs - 3.05x57.2x0.46 mm - Steel
Material: Steel    Spring Rate: 0.228 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0572-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.14 AUD
Regular price $11.59 AUD Sale price $6.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x57.2x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
57.2
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
80.770
mm
Spring Rate
0.666
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x57.2x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0572-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.41 AUD
Regular price $12.06 AUD Sale price $6.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x57.2x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
57.2
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
80.770
mm
Extension Springs - 3.05x57.2x0.56 mm - Steel
Material: Steel    Spring Rate: 0.666 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0572-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.41 AUD
Regular price $12.06 AUD Sale price $6.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x63.5x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
63.5
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
89.920
mm
Spring Rate
0.595
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x63.5x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0635-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.50 AUD
Regular price $12.31 AUD Sale price $6.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.05x63.5x0.56 mm Music Wire - Steel Spring
OD (D0)
3.05
mm
Overall Length (L0)
63.5
mm
Wire Diameter (d)
0.56
mm
Max. Extension (L1)
89.920
mm
Extension Springs - 3.05x63.5x0.56 mm - Steel
Material: Steel    Spring Rate: 0.595 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0305-0635-06-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.50 AUD
Regular price $12.31 AUD Sale price $6.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x152.4x0.38 mm Music Wire - Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
152.4
mm
Wire Diameter (d)
0.38
mm
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x152.4x0.38 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-1524-04-M (Each)
3 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $13.77 AUD
Regular price Sale price $13.77 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Larger quantities than the 3 available can be backordered.
Extension Springs - 3.18x152.4x0.38 mm Music Wire - Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
152.4
mm
Wire Diameter (d)
0.38
mm
Extension Springs - 3.18x152.4x0.38 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-1524-04-M (Each)
3 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $13.77 AUD
Regular price Sale price $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
Overall Length (L0)
203.2
mm
Wire Diameter (d)
0.38
mm
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x203.2x0.38 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-2032-04-M (Each)
5 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $12.68 AUD
Regular price Sale price $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
Overall Length (L0)
203.2
mm
Wire Diameter (d)
0.38
mm
Extension Springs - 3.18x203.2x0.38 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-2032-04-M (Each)
5 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $12.68 AUD
Regular price Sale price $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
Overall Length (L0)
279.4
mm
Wire Diameter (d)
0.41
mm
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x279.4x0.41 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-2794-04-M (Each)
8 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $11.41 AUD
Regular price Sale price $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
Overall Length (L0)
279.4
mm
Wire Diameter (d)
0.41
mm
Extension Springs - 3.18x279.4x0.41 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-2794-04-M (Each)
8 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $11.41 AUD
Regular price Sale price $11.41 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

8 Available Now. Backorder if more than 8.
Extension Springs - 3.18x508x0.33 mm - Stainless Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
508.0
mm
Wire Diameter (d)
0.33
mm
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 3.18x508x0.33 mm - Stainless Steel
Material: Stainless Steel   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-5080-03-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $26.14 AUD
Regular price $31.36 AUD Sale price $26.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x508x0.33 mm - Stainless Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
508.0
mm
Wire Diameter (d)
0.33
mm
Extension Springs - 3.18x508x0.33 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.1 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-5080-03-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $26.14 AUD
Regular price $31.36 AUD Sale price $26.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x508x0.43 mm - Stainless Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
508.0
mm
Wire Diameter (d)
0.43
mm
Spring Rate
0.25
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3.18x508x0.43 mm - Stainless Steel
Material: Stainless Steel   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-5080-04-S2 (Each)
1 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $39.05 AUD
Regular price $74.80 AUD Sale price $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
Overall Length (L0)
508.0
mm
Wire Diameter (d)
0.43
mm
Extension Springs - 3.18x508x0.43 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 0.25 N/mm    Initial Tension (IT): 0.3 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-5080-04-S2 (Each)
1 Available Now | Further orders can be expected around Sun, Jun 28, 2026
Regular price $39.05 AUD
Regular price $74.80 AUD Sale price $39.05 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

1 Available Now. Backorder if more than 1.
Extension Springs - 3.18x508x0.51 mm - Stainless Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
508.0
mm
Wire Diameter (d)
0.51
mm
Spring Rate
0.61
N/mm
Initial Tension (IT)
0.6
N
Extension Springs - 3.18x508x0.51 mm - Stainless Steel
Material: Stainless Steel   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-5080-05-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $33.32 AUD
Regular price $39.98 AUD Sale price $33.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x508x0.51 mm - Stainless Steel Spring
OD (D0)
3.18
mm
Overall Length (L0)
508.0
mm
Wire Diameter (d)
0.51
mm
Extension Springs - 3.18x508x0.51 mm - Stainless Steel
Material: Stainless Steel    Spring Rate: 0.61 N/mm    Initial Tension (IT): 0.6 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-5080-05-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $33.32 AUD
Regular price $39.98 AUD Sale price $33.32 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x914x0.31 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.31
mm
Spring Rate
0.04
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.18x914x0.31 mm - Steel - None
Material: Steel - None   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-9140-03-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $27.50 AUD
Regular price $33.00 AUD Sale price $27.50 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x914x0.31 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.31
mm
Extension Springs - 3.18x914x0.31 mm - Steel - None
Material: Steel - None    Spring Rate: 0.04 N/mm    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-9140-03-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $27.50 AUD
Regular price $33.00 AUD Sale price $27.50 AUD
Each
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Extension Springs - 3.18x914x0.36 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.36
mm
Spring Rate
0.10
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 3.18x914x0.36 mm - Steel - None
Material: Steel - None   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-9140-035-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $22.50 AUD
Regular price $27.00 AUD Sale price $22.50 AUD
Each
Excludes GST and overseas Taxes & Duties
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Extension Springs - 3.18x914x0.36 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.36
mm
Extension Springs - 3.18x914x0.36 mm - Steel - None
Material: Steel - None    Spring Rate: 0.10 N/mm    Initial Tension (IT): 0.1 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-9140-035-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $22.50 AUD
Regular price $27.00 AUD Sale price $22.50 AUD
Each
Excludes GST and overseas Taxes & Duties
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Extension Springs - 3.18x914x0.41 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.41
mm
Spring Rate
0.21
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3.18x914x0.41 mm - Steel - None
Material: Steel - None   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-0914-04-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $23.05 AUD
Regular price $27.65 AUD Sale price $23.05 AUD
Each
Excludes GST and overseas Taxes & Duties
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Backorder: Out of Stock.
Extension Springs - 3.18x914x0.41 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.41
mm
Extension Springs - 3.18x914x0.41 mm - Steel - None
Material: Steel - None    Spring Rate: 0.21 N/mm    Initial Tension (IT): 0.2 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-0914-04-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $23.05 AUD
Regular price $27.65 AUD Sale price $23.05 AUD
Each
Excludes GST and overseas Taxes & Duties
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Extension Springs - 3.18x914x0.58 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.58
mm
Spring Rate
1.52
N/mm
Initial Tension (IT)
1.5
N
Extension Springs - 3.18x914x0.58 mm - Steel - None
Material: Steel - None   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-9140-06-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $31.14 AUD
Regular price $37.36 AUD Sale price $31.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.18x914x0.58 mm Stainless Steel - Steel - None Spring
OD (D0)
3.18
mm
Overall Length (L0)
914.0
mm
Wire Diameter (d)
0.58
mm
Extension Springs - 3.18x914x0.58 mm - Steel - None
Material: Steel - None    Spring Rate: 1.52 N/mm    Initial Tension (IT): 1.5 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0318-9140-06-S2 (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $31.14 AUD
Regular price $37.36 AUD Sale price $31.14 AUD
Each
Excludes GST and overseas Taxes & Duties
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Extension Springs - 3.2x107x0.4 mm Music Wire - Steel Spring
OD (D0)
3.20
mm
Overall Length (L0)
107.0
mm
Wire Diameter (d)
0.40
mm
Initial Tension (IT)
0.0
N
Extension Springs - 3.2x107x0.4 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-1070-04-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.23 AUD
Regular price $11.81 AUD Sale price $6.23 AUD
Each
Excludes GST and overseas Taxes & Duties
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Extension Springs - 3.2x107x0.4 mm Music Wire - Steel Spring
OD (D0)
3.20
mm
Overall Length (L0)
107.0
mm
Wire Diameter (d)
0.40
mm
Extension Springs - 3.2x107x0.4 mm - Steel
Material: Steel    Initial Tension (IT): 0.0 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0318-1070-04-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Aug 02, 2026
Regular price $6.23 AUD
Regular price $11.81 AUD Sale price $6.23 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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Extension Springs - 3.5x11.1x0.7 mm - Stainless Steel 302/304 Similar to A2, 18-8 Spring
OD (D0)
3.50
mm
Overall Length (L0)
11.1
mm
Wire Diameter (d)
0.70
mm
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   
Category: Springs - Extension - Stainless Steel
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
Regular price $27.21 AUD
Regular price $51.70 AUD Sale price $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
Overall Length (L0)
11.1
mm
Wire Diameter (d)
0.70
mm
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   
Category: Springs - Extension - Stainless Steel
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
Regular price $27.21 AUD
Regular price $51.70 AUD Sale price $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 - 3.96x38.1x0.51 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
3.96
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.51
mm
Spring Rate
0.25
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc
Material: Steel - Zinc   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0396-0381-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $4.86 AUD
Regular price $5.84 AUD Sale price $4.86 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

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Extension Springs - 3.96x38.1x0.51 mm Stainless Steel - Steel - Zinc Spring
OD (D0)
3.96
mm
Overall Length (L0)
38.1
mm
Wire Diameter (d)
0.51
mm
Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.25 N/mm    Initial Tension (IT): 0.3 N   
Category: Springs - Extension - Stainless Steel
Part Number: ES-0396-0381-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $4.86 AUD
Regular price $5.84 AUD Sale price $4.86 AUD
Each
Excludes GST and overseas Taxes & Duties
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Extension Springs - 3.96x152.4x0.51 mm Music Wire - Steel Spring
OD (D0)
3.96
mm
Overall Length (L0)
152.4
mm
Wire Diameter (d)
0.51
mm
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 3.96x152.4x0.51 mm - Steel
Material: Steel   
Category: Springs - Extension - Music Wire
Part Number: ES-0396-1524-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $16.14 AUD
Regular price Sale price $16.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.
Extension Springs - 3.96x152.4x0.51 mm Music Wire - Steel Spring
OD (D0)
3.96
mm
Overall Length (L0)
152.4
mm
Wire Diameter (d)
0.51
mm
Extension Springs - 3.96x152.4x0.51 mm - Steel
Material: Steel    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.1 N   
Category: Springs - Extension - Music Wire
Part Number: ES-0396-1524-05-M (Each)
Out of Stock | Backorder Now | Backorder now for delivery around Sun, Jun 28, 2026
Regular price $16.14 AUD
Regular price Sale price $16.14 AUD
Each
Excludes GST and overseas Taxes & Duties
Quantity Required

Backorder: Out of Stock.