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)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
105.160
mm
Spring Rate
0.140
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 4.57x44.5x0.51 mm - Steel
Material: Steel    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-05-M
Extension Springs - 4.57x44.5x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.41 AUD
$10.26 AUD $5.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
105.160
mm
Extension Springs - 4.57x44.5x0.51 mm - Steel
Material: Steel    Spring Rate: 0.140 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-05-M
Extension Springs - 4.57x44.5x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.41 AUD
$10.26 AUD $5.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

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

(Equiv. 0.022 in.)
Max. Extension (L1)
90.170
mm
Spring Rate
0.228
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 4.57x44.5x0.56 mm - Steel
Material: Steel    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-06-M
Extension Springs - 4.57x44.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.68 AUD
$10.66 AUD $5.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

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

(Equiv. 0.022 in.)
Max. Extension (L1)
90.170
mm
Extension Springs - 4.57x44.5x0.56 mm - Steel
Material: Steel    Spring Rate: 0.228 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-06-M
Extension Springs - 4.57x44.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.68 AUD
$10.66 AUD $5.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
62.480
mm
Spring Rate
1.524
N/mm
Initial Tension (IT)
2.7
N
Extension Springs - 4.57x44.5x0.79 mm - Steel
Material: Steel    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-08-M
Extension Springs - 4.57x44.5x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.23 AUD
$11.74 AUD $6.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
62.480
mm
Extension Springs - 4.57x44.5x0.79 mm - Steel
Material: Steel    Spring Rate: 1.524 N/mm    Initial Tension (IT): 2.7 N    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-08-M
Extension Springs - 4.57x44.5x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.23 AUD
$11.74 AUD $6.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
67.310
mm
Spring Rate
1.033
N/mm
Initial Tension (IT)
2.3
N
Extension Springs - 4.57x44.5x0.71 mm - Steel
Material: Steel    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-07-M
Extension Springs - 4.57x44.5x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.05 AUD
$11.48 AUD $6.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
67.310
mm
Extension Springs - 4.57x44.5x0.71 mm - Steel
Material: Steel    Spring Rate: 1.033 N/mm    Initial Tension (IT): 2.3 N    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-07-M
Extension Springs - 4.57x44.5x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.05 AUD
$11.48 AUD $6.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
58.930
mm
Spring Rate
2.500
N/mm
Initial Tension (IT)
3.6
N
Extension Springs - 4.57x44.5x0.89 mm - Steel
Material: Steel    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-09-M
Extension Springs - 4.57x44.5x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.41 AUD
$12.17 AUD $6.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
44.5
mm

(Equiv. 1.752 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
58.930
mm
Extension Springs - 4.57x44.5x0.89 mm - Steel
Material: Steel    Spring Rate: 2.500 N/mm    Initial Tension (IT): 3.6 N    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0445-09-M
Extension Springs - 4.57x44.5x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.41 AUD
$12.17 AUD $6.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
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
Extension Springs - 4.57x50.8x0.51 mm Music Wire - Steel Spring
2 Available Now | Further orders can be expected around Thu, Oct 23, 2025
$4.23 AUD
$10.26 AUD $4.23 AUD
Each
Quantity Required

2 Available Now. Backorder if more than 2.
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
Extension Springs - 4.57x50.8x0.51 mm Music Wire - Steel Spring
2 Available Now | Further orders can be expected around Thu, Oct 23, 2025
$4.23 AUD
$10.26 AUD $4.23 AUD
Each
Quantity Required

2 Available Now. Backorder if more than 2.
OD (D0)
4.57
mm

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

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

(Equiv. 0.022 in.)
Max. Extension (L1)
103.380
mm
Spring Rate
0.210
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 4.57x50.8x0.56 mm - Steel
Material: Steel    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-06-M
Extension Springs - 4.57x50.8x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.77 AUD
$10.91 AUD $5.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

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

(Equiv. 0.022 in.)
Max. Extension (L1)
103.380
mm
Extension Springs - 4.57x50.8x0.56 mm - Steel
Material: Steel    Spring Rate: 0.210 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-06-M
Extension Springs - 4.57x50.8x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.77 AUD
$10.91 AUD $5.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

(Equiv. 2 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
77.470
mm
Spring Rate
0.876
N/mm
Initial Tension (IT)
2.3
N
Extension Springs - 4.57x50.8x0.71 mm - Steel
Material: Steel    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-07-M
Extension Springs - 4.57x50.8x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.23 AUD
$11.70 AUD $6.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

(Equiv. 2 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
77.470
mm
Extension Springs - 4.57x50.8x0.71 mm - Steel
Material: Steel    Spring Rate: 0.876 N/mm    Initial Tension (IT): 2.3 N    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-07-M
Extension Springs - 4.57x50.8x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.23 AUD
$11.70 AUD $6.23 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

(Equiv. 2 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
71.880
mm
Spring Rate
1.313
N/mm
Initial Tension (IT)
2.7
N
Extension Springs - 4.57x50.8x0.79 mm - Steel
Material: Steel    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-08-M
Extension Springs - 4.57x50.8x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.32 AUD
$11.92 AUD $6.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

(Equiv. 2 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
71.880
mm
Extension Springs - 4.57x50.8x0.79 mm - Steel
Material: Steel    Spring Rate: 1.313 N/mm    Initial Tension (IT): 2.7 N    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-08-M
Extension Springs - 4.57x50.8x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.32 AUD
$11.92 AUD $6.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

(Equiv. 2 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
67.820
mm
Spring Rate
2.140
N/mm
Initial Tension (IT)
3.6
N
Extension Springs - 4.57x50.8x0.89 mm - Steel
Material: Steel    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-09-M
Extension Springs - 4.57x50.8x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.59 AUD
$12.38 AUD $6.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

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

(Equiv. 2 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
67.820
mm
Extension Springs - 4.57x50.8x0.89 mm - Steel
Material: Steel    Spring Rate: 2.140 N/mm    Initial Tension (IT): 3.6 N    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0508-09-M
Extension Springs - 4.57x50.8x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.59 AUD
$12.38 AUD $6.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
139.190
mm
Spring Rate
0.105
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 4.57x57.2x0.51 mm - Steel
Material: Steel    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-05-M
Extension Springs - 4.57x57.2x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.59 AUD
$10.48 AUD $5.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
139.190
mm
Extension Springs - 4.57x57.2x0.51 mm - Steel
Material: Steel    Spring Rate: 0.105 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-05-M
Extension Springs - 4.57x57.2x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.59 AUD
$10.48 AUD $5.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
87.880
mm
Spring Rate
0.701
N/mm
Initial Tension (IT)
2.3
N
Extension Springs - 4.57x57.2x0.71 mm - Steel
Material: Steel    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-07-M
Extension Springs - 4.57x57.2x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.32 AUD
$11.92 AUD $6.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
87.880
mm
Extension Springs - 4.57x57.2x0.71 mm - Steel
Material: Steel    Spring Rate: 0.701 N/mm    Initial Tension (IT): 2.3 N    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-07-M
Extension Springs - 4.57x57.2x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.32 AUD
$11.92 AUD $6.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

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

(Equiv. 0.022 in.)
Max. Extension (L1)
121.410
mm
Spring Rate
0.175
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 4.57x57.2x0.56 mm - Steel
Material: Steel    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-06-M
Extension Springs - 4.57x57.2x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.86 AUD
$11.09 AUD $5.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

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

(Equiv. 0.022 in.)
Max. Extension (L1)
121.410
mm
Extension Springs - 4.57x57.2x0.56 mm - Steel
Material: Steel    Spring Rate: 0.175 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-06-M
Extension Springs - 4.57x57.2x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.86 AUD
$11.09 AUD $5.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
76.710
mm
Spring Rate
1.874
N/mm
Initial Tension (IT)
3.6
N
Extension Springs - 4.57x57.2x0.89 mm - Steel
Material: Steel    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-09-M
Extension Springs - 4.57x57.2x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.68 AUD
$12.60 AUD $6.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
76.710
mm
Extension Springs - 4.57x57.2x0.89 mm - Steel
Material: Steel    Spring Rate: 1.874 N/mm    Initial Tension (IT): 3.6 N    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-09-M
Extension Springs - 4.57x57.2x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.68 AUD
$12.60 AUD $6.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
81.280
mm
Spring Rate
1.138
N/mm
Initial Tension (IT)
2.7
N
Extension Springs - 4.57x57.2x0.79 mm - Steel
Material: Steel    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-08-M
Extension Springs - 4.57x57.2x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.41 AUD
$12.17 AUD $6.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
57.2
mm

(Equiv. 2.252 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
81.280
mm
Extension Springs - 4.57x57.2x0.79 mm - Steel
Material: Steel    Spring Rate: 1.138 N/mm    Initial Tension (IT): 2.7 N    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0572-08-M
Extension Springs - 4.57x57.2x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.41 AUD
$12.17 AUD $6.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
156.460
mm
Spring Rate
0.088
N/mm
Initial Tension (IT)
0.8
N
Extension Springs - 4.57x63.5x0.51 mm - Steel
Material: Steel    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-05-M
Extension Springs - 4.57x63.5x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.68 AUD
$10.66 AUD $5.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.51
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
156.460
mm
Extension Springs - 4.57x63.5x0.51 mm - Steel
Material: Steel    Spring Rate: 0.088 N/mm    Initial Tension (IT): 0.8 N    Load at L1: 9.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-05-M
Extension Springs - 4.57x63.5x0.51 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.68 AUD
$10.66 AUD $5.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
98.040
mm
Spring Rate
0.683
N/mm
Initial Tension (IT)
2.3
N
Extension Springs - 4.57x63.5x0.71 mm - Steel
Material: Steel    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-07-M
Extension Springs - 4.57x63.5x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.41 AUD
$12.13 AUD $6.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.71
mm

(Equiv. 0.028 in.)
Max. Extension (L1)
98.040
mm
Extension Springs - 4.57x63.5x0.71 mm - Steel
Material: Steel    Spring Rate: 0.683 N/mm    Initial Tension (IT): 2.3 N    Load at L1: 25.890 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-07-M
Extension Springs - 4.57x63.5x0.71 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.41 AUD
$12.13 AUD $6.41 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

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

(Equiv. 0.022 in.)
Max. Extension (L1)
136.140
mm
Spring Rate
0.158
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 4.57x63.5x0.56 mm - Steel
Material: Steel    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-06-M
Extension Springs - 4.57x63.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.86 AUD
$11.12 AUD $5.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

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

(Equiv. 0.022 in.)
Max. Extension (L1)
136.140
mm
Extension Springs - 4.57x63.5x0.56 mm - Steel
Material: Steel    Spring Rate: 0.158 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 11.570 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-06-M
Extension Springs - 4.57x63.5x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$5.86 AUD
$11.12 AUD $5.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
92.200
mm
Spring Rate
0.981
N/mm
Initial Tension (IT)
2.7
N
Extension Springs - 4.57x63.5x0.79 mm - Steel
Material: Steel    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-08-M
Extension Springs - 4.57x63.5x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.59 AUD
$12.38 AUD $6.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
92.200
mm
Extension Springs - 4.57x63.5x0.79 mm - Steel
Material: Steel    Spring Rate: 0.981 N/mm    Initial Tension (IT): 2.7 N    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-08-M
Extension Springs - 4.57x63.5x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.59 AUD
$12.38 AUD $6.59 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
85.340
mm
Spring Rate
1.664
N/mm
Initial Tension (IT)
3.6
N
Extension Springs - 4.57x63.5x0.89 mm - Steel
Material: Steel    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-09-M
Extension Springs - 4.57x63.5x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.77 AUD
$12.85 AUD $6.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
63.5
mm

(Equiv. 2.5 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
85.340
mm
Extension Springs - 4.57x63.5x0.89 mm - Steel
Material: Steel    Spring Rate: 1.664 N/mm    Initial Tension (IT): 3.6 N    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0635-09-M
Extension Springs - 4.57x63.5x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.77 AUD
$12.85 AUD $6.77 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
69.9
mm

(Equiv. 2.752 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
94.230
mm
Spring Rate
1.489
N/mm
Initial Tension (IT)
3.6
N
Extension Springs - 4.57x69.9x0.89 mm - Steel
Material: Steel    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0699-09-M
Extension Springs - 4.57x69.9x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$7.05 AUD
$13.32 AUD $7.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
69.9
mm

(Equiv. 2.752 in.)
Wire Diameter (d)
0.89
mm

(Equiv. 0.035 in.)
Max. Extension (L1)
94.230
mm
Extension Springs - 4.57x69.9x0.89 mm - Steel
Material: Steel    Spring Rate: 1.489 N/mm    Initial Tension (IT): 3.6 N    Load at L1: 39.900 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0699-09-M
Extension Springs - 4.57x69.9x0.89 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$7.05 AUD
$13.32 AUD $7.05 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
69.9
mm

(Equiv. 2.752 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
101.850
mm
Spring Rate
0.893
N/mm
Initial Tension (IT)
2.7
N
Extension Springs - 4.57x69.9x0.79 mm - Steel
Material: Steel    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0699-08-M
Extension Springs - 4.57x69.9x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.68 AUD
$12.60 AUD $6.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.57
mm

(Equiv. 0.18 in.)
Overall Length (L0)
69.9
mm

(Equiv. 2.752 in.)
Wire Diameter (d)
0.79
mm

(Equiv. 0.031 in.)
Max. Extension (L1)
101.850
mm
Extension Springs - 4.57x69.9x0.79 mm - Steel
Material: Steel    Spring Rate: 0.893 N/mm    Initial Tension (IT): 2.7 N    Load at L1: 30.250 N    End Type: Closed - Full Loop   
Part Number: ES-0457-0699-08-M
Extension Springs - 4.57x69.9x0.79 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$6.68 AUD
$12.60 AUD $6.68 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.75
mm

(Equiv. 0.187 in.)
Overall Length (L0)
25.4
mm

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

(Equiv. 0.022 in.)
Spring Rate
0.40
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 4.75x25.4x0.56 mm - Steel - Zinc
Material: Steel - Zinc   
Part Number: ES-0475-0254-06-M
Extension Springs - 4.75x25.4x0.56 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$4.32 AUD
$5.18 AUD $4.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.75
mm

(Equiv. 0.187 in.)
Overall Length (L0)
25.4
mm

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

(Equiv. 0.022 in.)
Extension Springs - 4.75x25.4x0.56 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.40 N/mm    Initial Tension (IT): 0.4 N   
Part Number: ES-0475-0254-06-M
Extension Springs - 4.75x25.4x0.56 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$4.32 AUD
$5.18 AUD $4.32 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.75
mm

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

(Equiv. 1.5 in.)
Wire Diameter (d)
0.41
mm

(Equiv. 0.016 in.)
Spring Rate
0.04
N/mm
Initial Tension (IT)
0.0
N
Extension Springs - 4.75x38.1x0.41 mm - Steel - Zinc
Material: Steel - Zinc   
Part Number: ES-0475-0381-04-M
Extension Springs - 4.75x38.1x0.41 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$3.86 AUD
$4.64 AUD $3.86 AUD
Each
Quantity Required

Backorder: Out of Stock.
OD (D0)
4.75
mm

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

(Equiv. 1.5 in.)
Wire Diameter (d)
0.41
mm

(Equiv. 0.016 in.)
Extension Springs - 4.75x38.1x0.41 mm - Steel - Zinc
Material: Steel - Zinc    Spring Rate: 0.04 N/mm    Initial Tension (IT): 0.0 N   
Part Number: ES-0475-0381-04-M
Extension Springs - 4.75x38.1x0.41 mm Stainless Steel - Steel - Zinc Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Sep 18, 2025
$3.86 AUD
$4.64 AUD $3.86 AUD
Each
Quantity Required

Backorder: Out of Stock.