Springs - Extension - Music Wire

Springs -> Extension -> Music Wire

There are 894 products in the sub-categories of Springs - Extension - Music Wire. Scroll down or follow the link to Springs - Extension - Music Wire in the products table to see all these items combined into a handy table with filters.

Category Details

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

  • Helical spring that absorbs and stores energy by resisting a pulling force. When extended, it stores energy, and when released, it redistributes that energy to return to its original, coiled shape.
  • Typically used to provide a pulling force between two objects, often with hooks or loops on either end for attachment.
  • This category includes short and long lengths. An expanded range may be available on special order. Please enquire.
  • Zinc Plated Spring Steel not recommended for applications exceeding 121 Deg C (250 Deg F).

Miniature Bearings Australia - MBA Minibearings

Additional resources:


A more concise listing may be found in the Springs - Extension - Music Wire category on the Small Parts & Bearings online store.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Spring Rate Initial Tension (IT) Indicative
Image
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
20.40
mm
Spring Rate
0.11
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x10x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Part Number: ES-0300-0100-025-M (5 Pcs)
Extension Springs - 3x10x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0) Overall Length (L0) Wire Diameter (d) Max. Extension (L1) Indicative
Image
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
20.40
mm
Extension Springs - 3x10x0.25 mm - Steel
Material: Steel    Spring Rate: 0.11 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0100-025-M (5 Pcs)
Extension Springs - 3x10x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

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OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
18.70
mm
Spring Rate
0.23
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x10x0.3 mm - Steel
Material: Steel    Load at L1: 2.25 N   
Part Number: ES-0300-0100-03-M (5 Pcs)
Extension Springs - 3x10x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
18.70
mm
Extension Springs - 3x10x0.3 mm - Steel
Material: Steel    Spring Rate: 0.23 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0100-03-M (5 Pcs)
Extension Springs - 3x10x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
14.60
mm
Spring Rate
0.59
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x10x0.35 mm - Steel
Material: Steel    Load at L1: 3.33 N   
Part Number: ES-0300-0100-035-M (5 Pcs)
Extension Springs - 3x10x0.35 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
14.60
mm
Extension Springs - 3x10x0.35 mm - Steel
Material: Steel    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Part Number: ES-0300-0100-035-M (5 Pcs)
Extension Springs - 3x10x0.35 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
13.50
mm
Spring Rate
0.98
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x10x0.4 mm - Steel
Material: Steel    Load at L1: 4.41 N   
Part Number: ES-0300-0100-04-M (100 Pcs)
Extension Springs - 3x10x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
13.50
mm
Extension Springs - 3x10x0.4 mm - Steel
Material: Steel    Spring Rate: 0.98 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Part Number: ES-0300-0100-04-M (100 Pcs)
Extension Springs - 3x10x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
12.20
mm
Spring Rate
2.26
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3x10x0.45 mm - Steel
Material: Steel    Load at L1: 6.47 N   
Part Number: ES-0300-0100-045-M (5 Pcs)
Extension Springs - 3x10x0.45 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
12.20
mm
Extension Springs - 3x10x0.45 mm - Steel
Material: Steel    Spring Rate: 2.26 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 6.47 N   
Part Number: ES-0300-0100-045-M (5 Pcs)
Extension Springs - 3x10x0.45 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
12.00
mm
Spring Rate
3.24
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x10x0.5 mm - Steel
Material: Steel    Load at L1: 8.80 N   
Part Number: ES-0300-0100-05-M (5 Pcs)
Extension Springs - 3x10x0.5 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
10
mm

(Equiv. 0.394 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
12.00
mm
Extension Springs - 3x10x0.5 mm - Steel
Material: Steel    Spring Rate: 3.24 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Part Number: ES-0300-0100-05-M (5 Pcs)
Extension Springs - 3x10x0.5 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
38.00
mm
Spring Rate
0.05
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x15x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Part Number: ES-0300-0150-025-M (5 Pcs)
Extension Springs - 3x15x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
38.00
mm
Extension Springs - 3x15x0.25 mm - Steel
Material: Steel    Spring Rate: 0.05 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0150-025-M (5 Pcs)
Extension Springs - 3x15x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
31.60
mm
Spring Rate
0.12
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x15x0.3 mm - Steel
Material: Steel    Load at L1: 2.25 N   
Part Number: ES-0300-0150-03-M (5 Pcs)
Extension Springs - 3x15x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
31.60
mm
Extension Springs - 3x15x0.3 mm - Steel
Material: Steel    Spring Rate: 0.12 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0150-03-M (5 Pcs)
Extension Springs - 3x15x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
24.10
mm
Spring Rate
0.29
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x15x0.35 mm - Steel
Material: Steel    Load at L1: 3.33 N   
Part Number: ES-0300-0150-035-M (5 Pcs)
Extension Springs - 3x15x0.35 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
24.10
mm
Extension Springs - 3x15x0.35 mm - Steel
Material: Steel    Spring Rate: 0.29 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Part Number: ES-0300-0150-035-M (5 Pcs)
Extension Springs - 3x15x0.35 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
21.00
mm
Spring Rate
0.59
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x15x0.4 mm - Steel
Material: Steel    Load at L1: 4.41 N   
Part Number: ES-0300-0150-04-M (5 Pcs)
Extension Springs - 3x15x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
21.00
mm
Extension Springs - 3x15x0.4 mm - Steel
Material: Steel    Spring Rate: 0.59 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Part Number: ES-0300-0150-04-M (5 Pcs)
Extension Springs - 3x15x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
19.50
mm
Spring Rate
1.08
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3x15x0.45 mm - Steel
Material: Steel    Load at L1: 6.47 N   
Part Number: ES-0300-0150-045-M (5 Pcs)
Extension Springs - 3x15x0.45 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
19.50
mm
Extension Springs - 3x15x0.45 mm - Steel
Material: Steel    Spring Rate: 1.08 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 6.47 N   
Part Number: ES-0300-0150-045-M (5 Pcs)
Extension Springs - 3x15x0.45 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
18.70
mm
Spring Rate
1.77
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x15x0.5 mm - Steel
Material: Steel    Load at L1: 8.80 N   
Part Number: ES-0300-0150-05-M (100 Pcs)
Extension Springs - 3x15x0.5 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
15
mm

(Equiv. 0.591 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
18.70
mm
Extension Springs - 3x15x0.5 mm - Steel
Material: Steel    Spring Rate: 1.77 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Part Number: ES-0300-0150-05-M (100 Pcs)
Extension Springs - 3x15x0.5 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
55.90
mm
Spring Rate
0.03
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x20x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Part Number: ES-0300-0200-025-M (5 Pcs)
Extension Springs - 3x20x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
55.90
mm
Extension Springs - 3x20x0.25 mm - Steel
Material: Steel    Spring Rate: 0.03 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0200-025-M (5 Pcs)
Extension Springs - 3x20x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
45.00
mm
Spring Rate
0.08
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x20x0.3 mm - Steel
Material: Steel    Load at L1: 2.25 N   
Part Number: ES-0300-0200-03-M (5 Pcs)
Extension Springs - 3x20x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
45.00
mm
Extension Springs - 3x20x0.3 mm - Steel
Material: Steel    Spring Rate: 0.08 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0200-03-M (5 Pcs)
Extension Springs - 3x20x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
29.00
mm
Spring Rate
0.39
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3x20x0.4 mm - Steel
Material: Steel    Load at L1: 4.41 N   
Part Number: ES-0300-0200-04-M (5 Pcs)
Extension Springs - 3x20x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.32 AUD
$15.07 AUD $7.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.400
mm

(Equiv. 0.016 in.)
Max. Extension (L1)
29.00
mm
Extension Springs - 3x20x0.4 mm - Steel
Material: Steel    Spring Rate: 0.39 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 4.41 N   
Part Number: ES-0300-0200-04-M (5 Pcs)
Extension Springs - 3x20x0.4 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.32 AUD
$15.07 AUD $7.32 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
26.70
mm
Spring Rate
0.74
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3x20x0.45 mm - Steel
Material: Steel    Load at L1: 6.47 N   
Part Number: ES-0300-0200-045-M (5 Pcs)
Extension Springs - 3x20x0.45 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
20
mm

(Equiv. 0.787 in.)
Wire Diameter (d)
0.450
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
26.70
mm
Extension Springs - 3x20x0.45 mm - Steel
Material: Steel    Spring Rate: 0.74 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 6.47 N   
Part Number: ES-0300-0200-045-M (5 Pcs)
Extension Springs - 3x20x0.45 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$7.14 AUD
$14.74 AUD $7.14 AUD
Per 5
Quantity Required

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OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
72.90
mm
Spring Rate
0.02
N/mm
Initial Tension (IT)
0.2
N
Extension Springs - 3x25x0.25 mm - Steel
Material: Steel    Load at L1: 1.27 N   
Part Number: ES-0300-0250-025-M (100 Pcs)
Extension Springs - 3x25x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.250
mm

(Equiv. 0.01 in.)
Max. Extension (L1)
72.90
mm
Extension Springs - 3x25x0.25 mm - Steel
Material: Steel    Spring Rate: 0.02 N/mm    Initial Tension (IT): 0.2 N    Load at L1: 1.27 N   
Part Number: ES-0300-0250-025-M (100 Pcs)
Extension Springs - 3x25x0.25 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
58.30
mm
Spring Rate
0.06
N/mm
Initial Tension (IT)
0.3
N
Extension Springs - 3x25x0.3 mm - Steel
Material: Steel    Load at L1: 2.25 N   
Part Number: ES-0300-0250-03-M (100 Pcs)
Extension Springs - 3x25x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.300
mm

(Equiv. 0.012 in.)
Max. Extension (L1)
58.30
mm
Extension Springs - 3x25x0.3 mm - Steel
Material: Steel    Spring Rate: 0.06 N/mm    Initial Tension (IT): 0.3 N    Load at L1: 2.25 N   
Part Number: ES-0300-0250-03-M (100 Pcs)
Extension Springs - 3x25x0.3 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
44.50
mm
Spring Rate
0.14
N/mm
Initial Tension (IT)
0.7
N
Extension Springs - 3x25x0.35 mm - Steel
Material: Steel    Load at L1: 3.33 N   
Part Number: ES-0300-0250-035-M (100 Pcs)
Extension Springs - 3x25x0.35 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.350
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
44.50
mm
Extension Springs - 3x25x0.35 mm - Steel
Material: Steel    Spring Rate: 0.14 N/mm    Initial Tension (IT): 0.7 N    Load at L1: 3.33 N   
Part Number: ES-0300-0250-035-M (100 Pcs)
Extension Springs - 3x25x0.35 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
31.80
mm
Spring Rate
0.98
N/mm
Initial Tension (IT)
2.2
N
Extension Springs - 3x25x0.5 mm - Steel
Material: Steel    Load at L1: 8.80 N   
Part Number: ES-0300-0250-05-M (100 Pcs)
Extension Springs - 3x25x0.5 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

Backorder: Out of Stock.
OD (D0)
3.00
mm

(Equiv. 0.118 in.)
Overall Length (L0)
25
mm

(Equiv. 0.984 in.)
Wire Diameter (d)
0.500
mm

(Equiv. 0.02 in.)
Max. Extension (L1)
31.80
mm
Extension Springs - 3x25x0.5 mm - Steel
Material: Steel    Spring Rate: 0.98 N/mm    Initial Tension (IT): 2.2 N    Load at L1: 8.80 N   
Part Number: ES-0300-0250-05-M (100 Pcs)
Extension Springs - 3x25x0.5 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 02, 2025
$139.41 AUD
$294.84 AUD $139.41 AUD
Per 100
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
12.7
mm

(Equiv. 0.5 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
18.800
mm
Spring Rate
1.506
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x12.7x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0127-05-M
Extension Springs - 3.05x12.7x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.18 AUD $4.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
12.7
mm

(Equiv. 0.5 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
18.800
mm
Extension Springs - 3.05x12.7x0.46 mm - Steel
Material: Steel    Spring Rate: 1.506 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0127-05-M
Extension Springs - 3.05x12.7x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.18 AUD $4.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
40.130
mm
Spring Rate
0.210
N/mm
Initial Tension (IT)
0.4
N
Extension Springs - 3.05x19.1x0.36 mm - Steel
Material: Steel    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-04-M
Extension Springs - 3.05x19.1x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.77 AUD
$9.04 AUD $4.77 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.36
mm

(Equiv. 0.014 in.)
Max. Extension (L1)
40.130
mm
Extension Springs - 3.05x19.1x0.36 mm - Steel
Material: Steel    Spring Rate: 0.210 N/mm    Initial Tension (IT): 0.4 N    Load at L1: 4.980 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-04-M
Extension Springs - 3.05x19.1x0.36 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.77 AUD
$9.04 AUD $4.77 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
30.230
mm
Spring Rate
0.823
N/mm
Initial Tension (IT)
0.9
N
Extension Springs - 3.05x19.1x0.46 mm - Steel
Material: Steel    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-05-M
Extension Springs - 3.05x19.1x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.18 AUD $4.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.46
mm

(Equiv. 0.018 in.)
Max. Extension (L1)
30.230
mm
Extension Springs - 3.05x19.1x0.46 mm - Steel
Material: Steel    Spring Rate: 0.823 N/mm    Initial Tension (IT): 0.9 N    Load at L1: 9.790 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-05-M
Extension Springs - 3.05x19.1x0.46 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.86 AUD
$9.18 AUD $4.86 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
25.400
mm
Spring Rate
2.450
N/mm
Initial Tension (IT)
1.6
N
Extension Springs - 3.05x19.1x0.56 mm - Steel
Material: Steel    Load at L1: 17.300 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-06-M
Extension Springs - 3.05x19.1x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.95 AUD
$9.43 AUD $4.95 AUD
Each
Quantity Required

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

(Equiv. 0.12 in.)
Overall Length (L0)
19.1
mm

(Equiv. 0.752 in.)
Wire Diameter (d)
0.56
mm

(Equiv. 0.022 in.)
Max. Extension (L1)
25.400
mm
Extension Springs - 3.05x19.1x0.56 mm - Steel
Material: Steel    Spring Rate: 2.450 N/mm    Initial Tension (IT): 1.6 N    Load at L1: 17.300 N    End Type: Closed - Full Loop   
Part Number: ES-0305-0191-06-M
Extension Springs - 3.05x19.1x0.56 mm Music Wire - Steel Spring
Out of Stock | Backorder Now | Orders can be expected around Thu, Oct 23, 2025
$4.95 AUD
$9.43 AUD $4.95 AUD
Each
Quantity Required

Backorder: Out of Stock.