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)
3.05
mm

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

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

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

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OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
3.05
mm

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

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

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

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

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

(Equiv. 1 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
40.640
mm
Spring Rate
0.578
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x25.4x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0254-05-M
Extension Springs - 3.05x25.4x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $4.95 AUD
Regular price $9.40 AUD Sale price $4.95 AUD
Each
Quantity Required

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

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

(Equiv. 1 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
40.640
mm
Extension Springs - 3.05x25.4x0.46 mm - Steel
Material: Steel    Spring Rate: 0.578 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0254-05-M
Extension Springs - 3.05x25.4x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $4.95 AUD
Regular price $9.40 AUD Sale price $4.95 AUD
Each
Quantity Required

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

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

(Equiv. 1 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
34.540
mm
Spring Rate
1.699
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x25.4x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0254-06-M
Extension Springs - 3.05x25.4x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.14 AUD
Regular price $9.61 AUD Sale price $5.14 AUD
Each
Quantity Required

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

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

(Equiv. 1 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
34.540
mm
Extension Springs - 3.05x25.4x0.56 mm - Steel
Material: Steel    Spring Rate: 1.699 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0254-06-M
Extension Springs - 3.05x25.4x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.14 AUD
Regular price $9.61 AUD Sale price $5.14 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
72.900
mm
Spring Rate
0.105
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 3.05x31.8x0.36 mm - Steel
Material: Steel    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0318-04-M
Extension Springs - 3.05x31.8x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $4.86 AUD
Regular price $9.18 AUD Sale price $4.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
72.900
mm
Extension Springs - 3.05x31.8x0.36 mm - Steel
Material: Steel    Spring Rate: 0.105 N/mm    Initial Tension (IT): 0.4 N    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0318-04-M
Extension Springs - 3.05x31.8x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $4.86 AUD
Regular price $9.18 AUD Sale price $4.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
51.560
mm
Spring Rate
0.438
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x31.8x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0318-05-M
Extension Springs - 3.05x31.8x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.14 AUD
Regular price $9.61 AUD Sale price $5.14 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
51.560
mm
Extension Springs - 3.05x31.8x0.46 mm - Steel
Material: Steel    Spring Rate: 0.438 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0318-05-M
Extension Springs - 3.05x31.8x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.14 AUD
Regular price $9.61 AUD Sale price $5.14 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
43.940
mm
Spring Rate
1.296
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x31.8x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0318-06-M
Extension Springs - 3.05x31.8x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.23 AUD
Regular price $9.83 AUD Sale price $5.23 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
31.8
mm

(Equiv. 1.252 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
43.940
mm
Extension Springs - 3.05x31.8x0.56 mm - Steel
Material: Steel    Spring Rate: 1.296 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0318-06-M
Extension Springs - 3.05x31.8x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.23 AUD
Regular price $9.83 AUD Sale price $5.23 AUD
Each
Quantity Required

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

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

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

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

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

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

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

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

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

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

(Equiv. 1.5 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0381-05-M
Extension Springs - 3.05x38.1x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.23 AUD
Regular price $9.83 AUD Sale price $5.23 AUD
Each
Quantity Required

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

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

(Equiv. 1.5 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0381-05-M
Extension Springs - 3.05x38.1x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.23 AUD
Regular price $9.83 AUD Sale price $5.23 AUD
Each
Quantity Required

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

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

(Equiv. 1.5 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0381-06-M
Extension Springs - 3.05x38.1x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.32 AUD
Regular price $10.04 AUD Sale price $5.32 AUD
Each
Quantity Required

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

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

(Equiv. 1.5 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0381-06-M
Extension Springs - 3.05x38.1x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.32 AUD
Regular price $10.04 AUD Sale price $5.32 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0445-05-M
Extension Springs - 3.05x44.5x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.32 AUD
Regular price $10.04 AUD Sale price $5.32 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0445-05-M
Extension Springs - 3.05x44.5x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.32 AUD
Regular price $10.04 AUD Sale price $5.32 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
44.5
mm

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

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0445-06-M
Extension Springs - 3.05x44.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.41 AUD
Regular price $10.22 AUD Sale price $5.41 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
44.5
mm

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

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0445-06-M
Extension Springs - 3.05x44.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.41 AUD
Regular price $10.22 AUD Sale price $5.41 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0508-05-M
Extension Springs - 3.05x50.8x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.41 AUD
Regular price $10.22 AUD Sale price $5.41 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0508-05-M
Extension Springs - 3.05x50.8x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.41 AUD
Regular price $10.22 AUD Sale price $5.41 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0508-06-M
Extension Springs - 3.05x50.8x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.50 AUD
Regular price $10.44 AUD Sale price $5.50 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
50.8
mm

(Equiv. 2 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0508-06-M
Extension Springs - 3.05x50.8x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.50 AUD
Regular price $10.44 AUD Sale price $5.50 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0572-05-M
Extension Springs - 3.05x57.2x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.50 AUD
Regular price $10.44 AUD Sale price $5.50 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0572-05-M
Extension Springs - 3.05x57.2x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.50 AUD
Regular price $10.44 AUD Sale price $5.50 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0572-06-M
Extension Springs - 3.05x57.2x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.77 AUD
Regular price $10.91 AUD Sale price $5.77 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0572-06-M
Extension Springs - 3.05x57.2x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.77 AUD
Regular price $10.91 AUD Sale price $5.77 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0635-06-M
Extension Springs - 3.05x63.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.86 AUD
Regular price $11.09 AUD Sale price $5.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
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    End Type: Closed - Full Loop   
Part Number: ES-0305-0635-06-M
Extension Springs - 3.05x63.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.86 AUD
Regular price $11.09 AUD Sale price $5.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
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
Extension Springs - 3.18x152.4x0.38 mm Music Wire - Steel Spring
3 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $13.77 AUD
Regular price Sale price $13.77 AUD
Each
Quantity Required

3 Available Now. Backorder if more than 3.
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
Extension Springs - 3.18x152.4x0.38 mm Music Wire - Steel Spring
3 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $13.77 AUD
Regular price Sale price $13.77 AUD
Each
Quantity Required

3 Available Now. Backorder if more than 3.
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
Extension Springs - 3.18x203.2x0.38 mm Music Wire - Steel Spring
5 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $12.68 AUD
Regular price Sale price $12.68 AUD
Each
Quantity Required

5 Available Now. Backorder if more than 5.
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
Extension Springs - 3.18x203.2x0.38 mm Music Wire - Steel Spring
5 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $12.68 AUD
Regular price Sale price $12.68 AUD
Each
Quantity Required

5 Available Now. Backorder if more than 5.
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
Extension Springs - 3.18x279.4x0.41 mm Music Wire - Steel Spring
8 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $11.41 AUD
Regular price Sale price $11.41 AUD
Each
Quantity Required

8 Available Now. Backorder if more than 8.
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
Extension Springs - 3.18x279.4x0.41 mm Music Wire - Steel Spring
8 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $11.41 AUD
Regular price Sale price $11.41 AUD
Each
Quantity Required

8 Available Now. Backorder if more than 8.
OD (D0)
3.20
mm

(Equiv. 0.126 in.)
Overall Length (L0)
107.0
mm

(Equiv. 4.213 in.)
Wire Diameter (d)
0.40
mm

(Equiv. 0.016 in.)
Initial Tension (IT)
0.0
N
Extension Springs - 3.2x107x0.4 mm - Steel
Material: Steel    Body Length: 101.600 mm    End Type: Closed - Full Loop   
Part Number: ES-0318-1070-04-M
Extension Springs - 3.2x107x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.68 AUD
Regular price $10.66 AUD Sale price $5.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.20
mm

(Equiv. 0.126 in.)
Overall Length (L0)
107.0
mm

(Equiv. 4.213 in.)
Wire Diameter (d)
0.40
mm

(Equiv. 0.016 in.)
Extension Springs - 3.2x107x0.4 mm - Steel
Material: Steel    Initial Tension (IT): 0.0 N    Body Length: 101.600 mm    End Type: Closed - Full Loop   
Part Number: ES-0318-1070-04-M
Extension Springs - 3.2x107x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
Regular price $5.68 AUD
Regular price $10.66 AUD Sale price $5.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
Overall Length (L0)
38.1
mm

(Equiv. 1.5 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Spring Rate
0.25
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc
Material: Steel - Zinc   
Part Number: ES-0396-0381-05-M
Extension Springs - 3.96x38.1x0.51 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
Regular price $4.86 AUD
Regular price $5.84 AUD Sale price $4.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
Overall Length (L0)
38.1
mm

(Equiv. 1.5 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.25 N/mm    Initial Tension (IT): 0.3 N   
Part Number: ES-0396-0381-05-M
Extension Springs - 3.96x38.1x0.51 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
Regular price $4.86 AUD
Regular price $5.84 AUD Sale price $4.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 3.96x152.4x0.51 mm - Steel
Material: Steel   
Part Number: ES-0396-1524-05-M
Extension Springs - 3.96x152.4x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
Regular price $16.14 AUD
Regular price Sale price $16.14 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.96
mm

(Equiv. 0.156 in.)
Overall Length (L0)
152.4
mm

(Equiv. 6 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Extension Springs - 3.96x152.4x0.51 mm - Steel
Material: Steel    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.1 N   
Part Number: ES-0396-1524-05-M
Extension Springs - 3.96x152.4x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
Regular price $16.14 AUD
Regular price Sale price $16.14 AUD
Each
Quantity Required

Backorder: Out of Stock.
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
Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring
9 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $18.05 AUD
Regular price Sale price $18.05 AUD
Each
Quantity Required

9 Available Now. Backorder if more than 9.
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
Extension Springs - 3.96x279.4x0.41 mm Music Wire - Steel Spring
9 Available Now | Further orders can be expected around Thu, Sep 18, 2025
Regular price $18.05 AUD
Regular price Sale price $18.05 AUD
Each
Quantity Required

9 Available Now. Backorder if more than 9.
OD (D0)
3.96
mm

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

(Equiv. 11 in.)
Wire Diameter (d)
0.61
mm

(Equiv. 0.024 in.)
Spring Rate
0.08
N/mm
Initial Tension (IT)
0.1
N
Extension Springs - 3.96x279.4x0.61 mm - Steel
Material: Steel   
Part Number: ES-0396-2794-06-M
Extension Springs - 3.96x279.4x0.61 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
Regular price $5.95 AUD
Regular price $11.21 AUD Sale price $5.95 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.96
mm

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

(Equiv. 11 in.)
Wire Diameter (d)
0.61
mm

(Equiv. 0.024 in.)
Extension Springs - 3.96x279.4x0.61 mm - Steel
Material: Steel    Spring Rate: 0.08 N/mm    Initial Tension (IT): 0.1 N   
Part Number: ES-0396-2794-06-M
Extension Springs - 3.96x279.4x0.61 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
Regular price $5.95 AUD
Regular price $11.21 AUD Sale price $5.95 AUD
Each
Quantity Required

Backorder: Out of Stock.