Collection: Springs - Extension - Music Wire

Springs -> Extension -> Music Wire
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
2.24
mm

(Equiv. 0.088 in.)
Max. Extension (L1)
277.370
mm
Spring Rate
0.648
N/mm
Initial Tension (IT)
8.9
N
Extension Springs - 25.4x114.3x2.24 mm - Steel
Material: Steel    Load at L1: 115.250 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1143-22-M
Extension Springs - 25.4x114.3x2.24 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $21.68 AUD
Regular price $43.78 AUD Sale price $21.68 AUD
Each
Quantity Required

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OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
2.24
mm

(Equiv. 0.088 in.)
Max. Extension (L1)
277.370
mm
Extension Springs - 25.4x114.3x2.24 mm - Steel
Material: Steel    Spring Rate: 0.648 N/mm    Initial Tension (IT): 8.9 N    Load at L1: 115.250 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1143-22-M
Extension Springs - 25.4x114.3x2.24 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $21.68 AUD
Regular price $43.78 AUD Sale price $21.68 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
195.330
mm
Spring Rate
2.140
N/mm
Initial Tension (IT)
21.8
N
Extension Springs - 25.4x114.3x2.79 mm - Steel
Material: Steel    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1143-28-M
Extension Springs - 25.4x114.3x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $27.32 AUD
Regular price $55.66 AUD Sale price $27.32 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
114.3
mm

(Equiv. 4.5 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
195.330
mm
Extension Springs - 25.4x114.3x2.79 mm - Steel
Material: Steel    Spring Rate: 2.140 N/mm    Initial Tension (IT): 21.8 N    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1143-28-M
Extension Springs - 25.4x114.3x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $27.32 AUD
Regular price $55.66 AUD Sale price $27.32 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.01
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
387.600
mm
Spring Rate
0.320
N/mm
Initial Tension (IT)
6.2
N
Extension Springs - 25.4x127x2.01 mm - Steel
Material: Steel    Load at L1: 89.260 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-20-M
Extension Springs - 25.4x127x2.01 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $22.14 AUD
Regular price $44.75 AUD Sale price $22.14 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.01
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
387.600
mm
Extension Springs - 25.4x127x2.01 mm - Steel
Material: Steel    Spring Rate: 0.320 N/mm    Initial Tension (IT): 6.2 N    Load at L1: 89.260 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-20-M
Extension Springs - 25.4x127x2.01 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $22.14 AUD
Regular price $44.75 AUD Sale price $22.14 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.24
mm

(Equiv. 0.088 in.)
Max. Extension (L1)
320.040
mm
Spring Rate
0.560
N/mm
Initial Tension (IT)
8.9
N
Extension Springs - 25.4x127x2.24 mm - Steel
Material: Steel    Load at L1: 115.250 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-22-M
Extension Springs - 25.4x127x2.24 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $23.23 AUD
Regular price $47.05 AUD Sale price $23.23 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.24
mm

(Equiv. 0.088 in.)
Max. Extension (L1)
320.040
mm
Extension Springs - 25.4x127x2.24 mm - Steel
Material: Steel    Spring Rate: 0.560 N/mm    Initial Tension (IT): 8.9 N    Load at L1: 115.250 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-22-M
Extension Springs - 25.4x127x2.24 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $23.23 AUD
Regular price $47.05 AUD Sale price $23.23 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
272.290
mm
Spring Rate
0.981
N/mm
Initial Tension (IT)
12.0
N
Extension Springs - 25.4x127x2.49 mm - Steel
Material: Steel    Load at L1: 154.410 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-25-M
Extension Springs - 25.4x127x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $25.68 AUD
Regular price $52.24 AUD Sale price $25.68 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
272.290
mm
Extension Springs - 25.4x127x2.49 mm - Steel
Material: Steel    Spring Rate: 0.981 N/mm    Initial Tension (IT): 12.0 N    Load at L1: 154.410 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-25-M
Extension Springs - 25.4x127x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $25.68 AUD
Regular price $52.24 AUD Sale price $25.68 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
223.010
mm
Spring Rate
1.780
N/mm
Initial Tension (IT)
21.8
N
Extension Springs - 25.4x127x2.79 mm - Steel
Material: Steel    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-28-M
Extension Springs - 25.4x127x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $28.95 AUD
Regular price $59.22 AUD Sale price $28.95 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
127.0
mm

(Equiv. 5 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
223.010
mm
Extension Springs - 25.4x127x2.79 mm - Steel
Material: Steel    Spring Rate: 1.780 N/mm    Initial Tension (IT): 21.8 N    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1270-28-M
Extension Springs - 25.4x127x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $28.95 AUD
Regular price $59.22 AUD Sale price $28.95 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
139.7
mm

(Equiv. 5.5 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
250.700
mm
Spring Rate
1.560
N/mm
Initial Tension (IT)
21.8
N
Extension Springs - 25.4x139.7x2.79 mm - Steel
Material: Steel    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1397-28-M
Extension Springs - 25.4x139.7x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $31.14 AUD
Regular price $63.72 AUD Sale price $31.14 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
139.7
mm

(Equiv. 5.5 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
250.700
mm
Extension Springs - 25.4x139.7x2.79 mm - Steel
Material: Steel    Spring Rate: 1.560 N/mm    Initial Tension (IT): 21.8 N    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1397-28-M
Extension Springs - 25.4x139.7x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $31.14 AUD
Regular price $63.72 AUD Sale price $31.14 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
139.7
mm

(Equiv. 5.5 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
318.260
mm
Spring Rate
0.788
N/mm
Initial Tension (IT)
12.0
N
Extension Springs - 25.4x139.7x2.49 mm - Steel
Material: Steel    Load at L1: 154.410 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1397-25-M
Extension Springs - 25.4x139.7x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $27.41 AUD
Regular price $55.80 AUD Sale price $27.41 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
139.7
mm

(Equiv. 5.5 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
318.260
mm
Extension Springs - 25.4x139.7x2.49 mm - Steel
Material: Steel    Spring Rate: 0.788 N/mm    Initial Tension (IT): 12.0 N    Load at L1: 154.410 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1397-25-M
Extension Springs - 25.4x139.7x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $27.41 AUD
Regular price $55.80 AUD Sale price $27.41 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
146.1
mm

(Equiv. 5.752 in.)
Wire Diameter (d)
3.20
mm

(Equiv. 0.126 in.)
Initial Tension (IT)
2.9
N
Extension Springs - 25.4x146.1x3.2 mm - Music Wire
Material: Music Wire    Body Length: 101.600 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-1461-32-M
Extension Springs - 25.4x146.1x3.2 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $34.59 AUD
Regular price $41.51 AUD Sale price $34.59 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
146.1
mm

(Equiv. 5.752 in.)
Wire Diameter (d)
3.20
mm

(Equiv. 0.126 in.)
Extension Springs - 25.4x146.1x3.2 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 2.9 N    Body Length: 101.600 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-1461-32-M
Extension Springs - 25.4x146.1x3.2 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $34.59 AUD
Regular price $41.51 AUD Sale price $34.59 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
355.600
mm
Spring Rate
0.736
N/mm
Initial Tension (IT)
12.0
N
Extension Springs - 25.4x152.4x2.49 mm - Steel
Material: Steel    Load at L1: 154.410 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1524-25-M
Extension Springs - 25.4x152.4x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $29.14 AUD
Regular price $59.51 AUD Sale price $29.14 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
355.600
mm
Extension Springs - 25.4x152.4x2.49 mm - Steel
Material: Steel    Spring Rate: 0.736 N/mm    Initial Tension (IT): 12.0 N    Load at L1: 154.410 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1524-25-M
Extension Springs - 25.4x152.4x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $29.14 AUD
Regular price $59.51 AUD Sale price $29.14 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
278.640
mm
Spring Rate
1.410
N/mm
Initial Tension (IT)
21.8
N
Extension Springs - 25.4x152.4x2.79 mm - Steel
Material: Steel    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1524-28-M
Extension Springs - 25.4x152.4x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $33.23 AUD
Regular price $68.22 AUD Sale price $33.23 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
2.79
mm

(Equiv. 0.11 in.)
Max. Extension (L1)
278.640
mm
Extension Springs - 25.4x152.4x2.79 mm - Steel
Material: Steel    Spring Rate: 1.410 N/mm    Initial Tension (IT): 21.8 N    Load at L1: 194.330 N    End Type: Closed - Full Loop   
Part Number: ES-2540-1524-28-M
Extension Springs - 25.4x152.4x2.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $33.23 AUD
Regular price $68.22 AUD Sale price $33.23 AUD
Each
Quantity Required

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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   
Part Number: ES-2540-1778-34-M
Extension Springs - 25.4x177.8x3.43 mm Stainless Steel - Zinc Plated Steel Spring
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 $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
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   
Part Number: ES-2540-1778-34-M
Extension Springs - 25.4x177.8x3.43 mm Stainless Steel - Zinc Plated Steel Spring
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 $6.00 AUD
Regular price $11.40 AUD Sale price $6.00 AUD
Each
Quantity Required

1 Available Now. These are priced to quit. Please contact us for a quote if you require more.
OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
203.2
mm

(Equiv. 8 in.)
Wire Diameter (d)
2.67
mm

(Equiv. 0.105 in.)
Spring Rate
0.67
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 25.4x203.2x2.67 mm - Hard Drawn - Black Oxide
Material: Hard Drawn - Black Oxide   
Part Number: ES-2540-2032-27-M
Extension Springs - 25.4x203.2x2.67 mm Stainless Steel - Hard Drawn - Black Oxide Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $28.14 AUD
Regular price $33.76 AUD Sale price $28.14 AUD
Each
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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
203.2
mm

(Equiv. 8 in.)
Wire Diameter (d)
2.67
mm

(Equiv. 0.105 in.)
Extension Springs - 25.4x203.2x2.67 mm - Hard Drawn - Black Oxide
Material: Hard Drawn - Black Oxide    Spring Rate: 0.67 N/mm    Initial Tension (IT): 0.7 N   
Part Number: ES-2540-2032-27-M
Extension Springs - 25.4x203.2x2.67 mm Stainless Steel - Hard Drawn - Black Oxide Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $28.14 AUD
Regular price $33.76 AUD Sale price $28.14 AUD
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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
190.5
mm

(Equiv. 7.5 in.)
Wire Diameter (d)
2.67
mm

(Equiv. 0.105 in.)
Spring Rate
0.78
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 25.4x190.5x2.67 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc   
Part Number: ES-2540-1905-27-M
Extension Springs - 25.4x190.5x2.67 mm Stainless Steel - Hard Drawn - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $29.50 AUD
Regular price $35.40 AUD Sale price $29.50 AUD
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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
190.5
mm

(Equiv. 7.5 in.)
Wire Diameter (d)
2.67
mm

(Equiv. 0.105 in.)
Extension Springs - 25.4x190.5x2.67 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc    Spring Rate: 0.78 N/mm    Initial Tension (IT): 0.8 N   
Part Number: ES-2540-1905-27-M
Extension Springs - 25.4x190.5x2.67 mm Stainless Steel - Hard Drawn - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $29.50 AUD
Regular price $35.40 AUD Sale price $29.50 AUD
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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
2.41
mm

(Equiv. 0.095 in.)
Spring Rate
0.30
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 25.4x279.4x2.41 mm - Steel - None
Material: Steel - None   
Part Number: ES-2540-2794-24-M (200 Pcs)
Extension Springs - 25.4x279.4x2.41 mm Stainless Steel - Steel - None Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $8,138.59 AUD
Regular price $9,766.31 AUD Sale price $8,138.59 AUD
Per 200
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
2.41
mm

(Equiv. 0.095 in.)
Extension Springs - 25.4x279.4x2.41 mm - Steel - None
Material: Steel - None    Spring Rate: 0.30 N/mm    Initial Tension (IT): 0.3 N   
Part Number: ES-2540-2794-24-M (200 Pcs)
Extension Springs - 25.4x279.4x2.41 mm Stainless Steel - Steel - None Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $8,138.59 AUD
Regular price $9,766.31 AUD Sale price $8,138.59 AUD
Per 200
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
299.2
mm

(Equiv. 11.78 in.)
Wire Diameter (d)
2.80
mm

(Equiv. 0.11 in.)
Initial Tension (IT)
0.6
N
Extension Springs - 25.4x299.2x2.8 mm - Music Wire
Material: Music Wire    Body Length: 254.000 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-2992-28-M
Extension Springs - 25.4x299.2x2.8 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $54.23 AUD
Regular price $65.07 AUD Sale price $54.23 AUD
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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
299.2
mm

(Equiv. 11.78 in.)
Wire Diameter (d)
2.80
mm

(Equiv. 0.11 in.)
Extension Springs - 25.4x299.2x2.8 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 0.6 N    Body Length: 254.000 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-2992-28-M
Extension Springs - 25.4x299.2x2.8 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $54.23 AUD
Regular price $65.07 AUD Sale price $54.23 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
299.8
mm

(Equiv. 11.803 in.)
Wire Diameter (d)
2.50
mm

(Equiv. 0.098 in.)
Initial Tension (IT)
0.3
N
Extension Springs - 25.4x299.8x2.5 mm - Music Wire
Material: Music Wire    Body Length: 254.000 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-2998-25-M
Extension Springs - 25.4x299.8x2.5 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $42.23 AUD
Regular price $50.67 AUD Sale price $42.23 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
299.8
mm

(Equiv. 11.803 in.)
Wire Diameter (d)
2.50
mm

(Equiv. 0.098 in.)
Extension Springs - 25.4x299.8x2.5 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 0.3 N    Body Length: 254.000 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-2998-25-M
Extension Springs - 25.4x299.8x2.5 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $42.23 AUD
Regular price $50.67 AUD Sale price $42.23 AUD
Each
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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
3.15
mm

(Equiv. 0.124 in.)
Spring Rate
1.21
N/mm
Initial Tension (IT)
1.2
N
Extension Springs - 25.4x279.4x3.15 mm - Steel
Material: Steel   
Part Number: ES-2540-2794-32-M
Extension Springs - 25.4x279.4x3.15 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $38.41 AUD
Regular price $79.12 AUD Sale price $38.41 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
279.4
mm

(Equiv. 11 in.)
Wire Diameter (d)
3.15
mm

(Equiv. 0.124 in.)
Extension Springs - 25.4x279.4x3.15 mm - Steel
Material: Steel    Spring Rate: 1.21 N/mm    Initial Tension (IT): 1.2 N   
Part Number: ES-2540-2794-32-M
Extension Springs - 25.4x279.4x3.15 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $38.41 AUD
Regular price $79.12 AUD Sale price $38.41 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
349.3
mm

(Equiv. 13.752 in.)
Wire Diameter (d)
3.20
mm

(Equiv. 0.126 in.)
Initial Tension (IT)
0.9
N
Extension Springs - 25.4x349.3x3.2 mm - Music Wire
Material: Music Wire    Body Length: 304.800 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-3493-32-M
Extension Springs - 25.4x349.3x3.2 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $67.41 AUD
Regular price $80.89 AUD Sale price $67.41 AUD
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Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
349.3
mm

(Equiv. 13.752 in.)
Wire Diameter (d)
3.20
mm

(Equiv. 0.126 in.)
Extension Springs - 25.4x349.3x3.2 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 0.9 N    Body Length: 304.800 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-3493-32-M
Extension Springs - 25.4x349.3x3.2 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $67.41 AUD
Regular price $80.89 AUD Sale price $67.41 AUD
Each
Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
351.1
mm

(Equiv. 13.823 in.)
Wire Diameter (d)
2.20
mm

(Equiv. 0.087 in.)
Initial Tension (IT)
0.1
N
Extension Springs - 25.4x351.1x2.2 mm - Music Wire
Material: Music Wire    Body Length: 304.800 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-3511-22-M
Extension Springs - 25.4x351.1x2.2 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $36.05 AUD
Regular price $43.25 AUD Sale price $36.05 AUD
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Quantity Required

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OD (D0)
25.40
mm

(Equiv. 1 in.)
Overall Length (L0)
351.1
mm

(Equiv. 13.823 in.)
Wire Diameter (d)
2.20
mm

(Equiv. 0.087 in.)
Extension Springs - 25.4x351.1x2.2 mm - Music Wire
Material: Music Wire    Initial Tension (IT): 0.1 N    Body Length: 304.800 mm    End Type: Closed - Full Loop   
Part Number: ES-2540-3511-22-M
Extension Springs - 25.4x351.1x2.2 mm Stainless Steel - Music Wire Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $36.05 AUD
Regular price $43.25 AUD Sale price $36.05 AUD
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OD (D0)
26.98
mm

(Equiv. 1.062 in.)
Overall Length (L0)
177.8
mm

(Equiv. 7 in.)
Wire Diameter (d)
2.67
mm

(Equiv. 0.105 in.)
Spring Rate
0.64
N/mm
Initial Tension (IT)
0.6
N
Extension Springs - 26.98x177.8x2.67 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc   
Part Number: ES-2698-1778-27-M
Extension Springs - 26.98x177.8x2.67 mm Stainless Steel - Hard Drawn - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $28.77 AUD
Regular price $34.53 AUD Sale price $28.77 AUD
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OD (D0)
26.98
mm

(Equiv. 1.062 in.)
Overall Length (L0)
177.8
mm

(Equiv. 7 in.)
Wire Diameter (d)
2.67
mm

(Equiv. 0.105 in.)
Extension Springs - 26.98x177.8x2.67 mm - Hard Drawn - Zinc
Material: Hard Drawn - Zinc    Spring Rate: 0.64 N/mm    Initial Tension (IT): 0.6 N   
Part Number: ES-2698-1778-27-M
Extension Springs - 26.98x177.8x2.67 mm Stainless Steel - Hard Drawn - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Sep 19, 2025
Regular price $28.77 AUD
Regular price $34.53 AUD Sale price $28.77 AUD
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OD (D0)
28.58
mm

(Equiv. 1.125 in.)
Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
2.01
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
145.800
mm
Spring Rate
1.226
N/mm
Initial Tension (IT)
8.4
N
Extension Springs - 28.58x76.2x2.01 mm - Steel
Material: Steel    Load at L1: 93.280 N    End Type: Closed - Full Loop   
Part Number: ES-2858-0762-20-M
Extension Springs - 28.58x76.2x2.01 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $17.23 AUD
Regular price $34.42 AUD Sale price $17.23 AUD
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Quantity Required

Backorder: Out of Stock.
OD (D0)
28.58
mm

(Equiv. 1.125 in.)
Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
2.01
mm

(Equiv. 0.079 in.)
Max. Extension (L1)
145.800
mm
Extension Springs - 28.58x76.2x2.01 mm - Steel
Material: Steel    Spring Rate: 1.226 N/mm    Initial Tension (IT): 8.4 N    Load at L1: 93.280 N    End Type: Closed - Full Loop   
Part Number: ES-2858-0762-20-M
Extension Springs - 28.58x76.2x2.01 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $17.23 AUD
Regular price $34.42 AUD Sale price $17.23 AUD
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OD (D0)
28.58
mm

(Equiv. 1.125 in.)
Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
120.650
mm
Spring Rate
2.382
N/mm
Initial Tension (IT)
15.1
N
Extension Springs - 28.58x76.2x2.49 mm - Steel
Material: Steel    Load at L1: 121.040 N    End Type: Closed - Full Loop   
Part Number: ES-2858-0762-25-M
Extension Springs - 28.58x76.2x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $20.95 AUD
Regular price $42.23 AUD Sale price $20.95 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
28.58
mm

(Equiv. 1.125 in.)
Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
2.49
mm

(Equiv. 0.098 in.)
Max. Extension (L1)
120.650
mm
Extension Springs - 28.58x76.2x2.49 mm - Steel
Material: Steel    Spring Rate: 2.382 N/mm    Initial Tension (IT): 15.1 N    Load at L1: 121.040 N    End Type: Closed - Full Loop   
Part Number: ES-2858-0762-25-M
Extension Springs - 28.58x76.2x2.49 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $20.95 AUD
Regular price $42.23 AUD Sale price $20.95 AUD
Each
Quantity Required

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OD (D0)
28.58
mm

(Equiv. 1.125 in.)
Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
3.15
mm

(Equiv. 0.124 in.)
Max. Extension (L1)
106.930
mm
Spring Rate
8.090
N/mm
Initial Tension (IT)
24.5
N
Extension Springs - 28.58x76.2x3.15 mm - Steel
Material: Steel    Load at L1: 272.450 N    End Type: Closed - Full Loop   
Part Number: ES-2858-0762-31-M
Extension Springs - 28.58x76.2x3.15 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $25.86 AUD
Regular price $52.70 AUD Sale price $25.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
28.58
mm

(Equiv. 1.125 in.)
Overall Length (L0)
76.2
mm

(Equiv. 3 in.)
Wire Diameter (d)
3.15
mm

(Equiv. 0.124 in.)
Max. Extension (L1)
106.930
mm
Extension Springs - 28.58x76.2x3.15 mm - Steel
Material: Steel    Spring Rate: 8.090 N/mm    Initial Tension (IT): 24.5 N    Load at L1: 272.450 N    End Type: Closed - Full Loop   
Part Number: ES-2858-0762-31-M
Extension Springs - 28.58x76.2x3.15 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Fri, Oct 24, 2025
Regular price $25.86 AUD
Regular price $52.70 AUD Sale price $25.86 AUD
Each
Quantity Required

Backorder: Out of Stock.