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Collection: Springs - Extension - Music Wire

Springs (With Images)

Extension

Music Wire
Stainless Steel

894 Products in this selection

Includes long lengths up to 1 metre
Zinc Plated Spring Steel not recommended for applications exceeding 121 ^oC (250 Deg F).
302 Stainless springs not recommended for applications exceeding 260 ^oC (500 Deg F).
302 stainless steel is slightly magnetic.

Additional resources:
Spings Catalogue PDF
Spring Anchors

A more concise listing may be found on the Smallparts store at Springs - Extension - Music Wire. Smallparts promote the most popular MBA products.

OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Spring Rate	Initial Tension (IT)	Indicative Image
OD (D0) 4.00 mm _{(0.157 in.)}	Overall Length (L0) 40 mm _{(1.575 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 70.00 mm	Spring Rate 0.13 N/mm	Initial Tension (IT) 1.0 N
Material: Steel Load at L1: 4.81 N
Part Number: ES-0400-0400-045-M (5 Pcs) Extension Springs - 4x40x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 17, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Per 5
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 4.00 mm _{(0.157 in.)}	Overall Length (L0) 40 mm _{(1.575 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 70.00 mm
Material: Steel Spring Rate: 0.13 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N
Part Number: ES-0400-0400-045-M (5 Pcs) Extension Springs - 4x40x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 17, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0400-045-M (5 Pcs) --- Extension Springs - 4x40x0.45 mm - Steel ES-0400-0400-045-M (5 Pcs) --- Extension Springs - 4x40x0.45 mm - Steel Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.00 mm _{(0.157 in.)}	Overall Length (L0) 40 mm _{(1.575 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 64.00 mm	Spring Rate 0.22 N/mm	Initial Tension (IT) 1.2 N
Material: Steel Load at L1: 6.37 N
Part Number: ES-0400-0400-05-M (5 Pcs) Extension Springs - 4x40x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 17, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 4.00 mm _{(0.157 in.)}	Overall Length (L0) 40 mm _{(1.575 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 64.00 mm
Material: Steel Spring Rate: 0.22 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N
Part Number: ES-0400-0400-05-M (5 Pcs) Extension Springs - 4x40x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 17, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0400-05-M (5 Pcs) --- Extension Springs - 4x40x0.5 mm - Steel ES-0400-0400-05-M (5 Pcs) --- Extension Springs - 4x40x0.5 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 12.7 mm _{(0.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 18.540 mm	Spring Rate 1.839 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0127-06-M Extension Springs - 4.57x12.7x0.56 mm - Steel 1 Available Immediately \| Further orders can be expected around Tue, Jul 08, 2025 Regular price $6.05 AUD Regular price ~~$7.25 AUD~~ Sale price $6.05 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 12.7 mm _{(0.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 18.540 mm
Material: Steel Spring Rate: 1.839 N/mm Initial Tension (IT): 0.8 N Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0127-06-M Extension Springs - 4.57x12.7x0.56 mm - Steel 1 Available Immediately \| Further orders can be expected around Tue, Jul 08, 2025 Regular price $6.05 AUD Regular price ~~$7.25 AUD~~ Sale price $6.05 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0127-06-M --- Extension Springs - 4.57x12.7x0.56 mm - Steel Sale ES-0457-0127-06-M --- Extension Springs - 4.57x12.7x0.56 mm - Steel Regular price $6.05 AUD Regular price ~~$7.25 AUD~~ Sale price $6.05 AUD Unit price per 1 Available Now Sale
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 12.7 mm _{(0.5 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 15.490 mm	Spring Rate 10.400 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0127-08-M Extension Springs - 4.57x12.7x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 12.7 mm _{(0.5 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 15.490 mm
Material: Steel Spring Rate: 10.400 N/mm Initial Tension (IT): 2.7 N Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0127-08-M Extension Springs - 4.57x12.7x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0127-08-M --- Extension Springs - 4.57x12.7x0.79 mm - Steel ES-0457-0127-08-M --- Extension Springs - 4.57x12.7x0.79 mm - Steel Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 37.080 mm	Spring Rate 0.473 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-05-M Extension Springs - 4.57x19.1x0.51 mm - Steel 1 Available Immediately \| Further orders can be expected around Tue, Jul 08, 2025 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 37.080 mm
Material: Steel Spring Rate: 0.473 N/mm Initial Tension (IT): 0.8 N Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-05-M Extension Springs - 4.57x19.1x0.51 mm - Steel 1 Available Immediately \| Further orders can be expected around Tue, Jul 08, 2025 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0191-05-M --- Extension Springs - 4.57x19.1x0.51 mm - Steel ES-0457-0191-05-M --- Extension Springs - 4.57x19.1x0.51 mm - Steel Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per 1 Available Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 33.270 mm	Spring Rate 0.771 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-06-M Extension Springs - 4.57x19.1x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 33.270 mm
Material: Steel Spring Rate: 0.771 N/mm Initial Tension (IT): 0.9 N Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-06-M Extension Springs - 4.57x19.1x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0191-06-M --- Extension Springs - 4.57x19.1x0.56 mm - Steel ES-0457-0191-06-M --- Extension Springs - 4.57x19.1x0.56 mm - Steel Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 26.160 mm	Spring Rate 3.310 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-07-M Extension Springs - 4.57x19.1x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.23 AUD Regular price Sale price $11.23 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 26.160 mm
Material: Steel Spring Rate: 3.310 N/mm Initial Tension (IT): 2.3 N Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-07-M Extension Springs - 4.57x19.1x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.23 AUD Regular price Sale price $11.23 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0191-07-M --- Extension Springs - 4.57x19.1x0.71 mm - Steel ES-0457-0191-07-M --- Extension Springs - 4.57x19.1x0.71 mm - Steel Regular price $11.23 AUD Regular price Sale price $11.23 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 24.890 mm	Spring Rate 4.750 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-08-M Extension Springs - 4.57x19.1x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 24.890 mm
Material: Steel Spring Rate: 4.750 N/mm Initial Tension (IT): 2.7 N Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-08-M Extension Springs - 4.57x19.1x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0191-08-M --- Extension Springs - 4.57x19.1x0.79 mm - Steel ES-0457-0191-08-M --- Extension Springs - 4.57x19.1x0.79 mm - Steel Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 23.620 mm	Spring Rate 7.830 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-09-M Extension Springs - 4.57x19.1x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 23.620 mm
Material: Steel Spring Rate: 7.830 N/mm Initial Tension (IT): 3.6 N Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0191-09-M Extension Springs - 4.57x19.1x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0191-09-M --- Extension Springs - 4.57x19.1x0.89 mm - Steel ES-0457-0191-09-M --- Extension Springs - 4.57x19.1x0.89 mm - Steel Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 54.100 mm	Spring Rate 0.298 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-05-M Extension Springs - 4.57x25.4x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 54.100 mm
Material: Steel Spring Rate: 0.298 N/mm Initial Tension (IT): 0.8 N Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-05-M Extension Springs - 4.57x25.4x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0254-05-M --- Extension Springs - 4.57x25.4x0.51 mm - Steel ES-0457-0254-05-M --- Extension Springs - 4.57x25.4x0.51 mm - Steel Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 47.400 mm	Spring Rate 0.490 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-06-M Extension Springs - 4.57x25.4x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 47.400 mm
Material: Steel Spring Rate: 0.490 N/mm Initial Tension (IT): 0.9 N Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-06-M Extension Springs - 4.57x25.4x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0254-06-M --- Extension Springs - 4.57x25.4x0.56 mm - Steel ES-0457-0254-06-M --- Extension Springs - 4.57x25.4x0.56 mm - Steel Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 63.320 mm	Spring Rate 2.140 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-07-M Extension Springs - 4.57x25.4x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 63.320 mm
Material: Steel Spring Rate: 2.140 N/mm Initial Tension (IT): 2.3 N Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-07-M Extension Springs - 4.57x25.4x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0254-07-M --- Extension Springs - 4.57x25.4x0.71 mm - Steel ES-0457-0254-07-M --- Extension Springs - 4.57x25.4x0.71 mm - Steel Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 34.290 mm	Spring Rate 3.120 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-08-M Extension Springs - 4.57x25.4x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 34.290 mm
Material: Steel Spring Rate: 3.120 N/mm Initial Tension (IT): 2.7 N Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-08-M Extension Springs - 4.57x25.4x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0254-08-M --- Extension Springs - 4.57x25.4x0.79 mm - Steel ES-0457-0254-08-M --- Extension Springs - 4.57x25.4x0.79 mm - Steel Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 32.510 mm	Spring Rate 5.110 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-09-M Extension Springs - 4.57x25.4x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 32.510 mm
Material: Steel Spring Rate: 5.110 N/mm Initial Tension (IT): 3.6 N Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0254-09-M Extension Springs - 4.57x25.4x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0254-09-M --- Extension Springs - 4.57x25.4x0.89 mm - Steel ES-0457-0254-09-M --- Extension Springs - 4.57x25.4x0.89 mm - Steel Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 71.120 mm	Spring Rate 0.210 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-05-M Extension Springs - 4.57x31.8x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 71.120 mm
Material: Steel Spring Rate: 0.210 N/mm Initial Tension (IT): 0.8 N Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-05-M Extension Springs - 4.57x31.8x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0318-05-M --- Extension Springs - 4.57x31.8x0.51 mm - Steel ES-0457-0318-05-M --- Extension Springs - 4.57x31.8x0.51 mm - Steel Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 61.720 mm	Spring Rate 0.350 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-06-M Extension Springs - 4.57x31.8x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 61.720 mm
Material: Steel Spring Rate: 0.350 N/mm Initial Tension (IT): 0.9 N Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-06-M Extension Springs - 4.57x31.8x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0318-06-M --- Extension Springs - 4.57x31.8x0.56 mm - Steel ES-0457-0318-06-M --- Extension Springs - 4.57x31.8x0.56 mm - Steel Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 46.740 mm	Spring Rate 1.576 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-07-M Extension Springs - 4.57x31.8x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 46.740 mm
Material: Steel Spring Rate: 1.576 N/mm Initial Tension (IT): 2.3 N Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-07-M Extension Springs - 4.57x31.8x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0318-07-M --- Extension Springs - 4.57x31.8x0.71 mm - Steel ES-0457-0318-07-M --- Extension Springs - 4.57x31.8x0.71 mm - Steel Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 43.690 mm	Spring Rate 2.290 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-08-M Extension Springs - 4.57x31.8x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 43.690 mm
Material: Steel Spring Rate: 2.290 N/mm Initial Tension (IT): 2.7 N Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-08-M Extension Springs - 4.57x31.8x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0318-08-M --- Extension Springs - 4.57x31.8x0.79 mm - Steel ES-0457-0318-08-M --- Extension Springs - 4.57x31.8x0.79 mm - Steel Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 41.400 mm	Spring Rate 3.780 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-09-M Extension Springs - 4.57x31.8x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 41.400 mm
Material: Steel Spring Rate: 3.780 N/mm Initial Tension (IT): 3.6 N Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0318-09-M Extension Springs - 4.57x31.8x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0318-09-M --- Extension Springs - 4.57x31.8x0.89 mm - Steel ES-0457-0318-09-M --- Extension Springs - 4.57x31.8x0.89 mm - Steel Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 88.140 mm	Spring Rate 0.175 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-05-M Extension Springs - 4.57x38.1x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 88.140 mm
Material: Steel Spring Rate: 0.175 N/mm Initial Tension (IT): 0.8 N Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-05-M Extension Springs - 4.57x38.1x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0381-05-M --- Extension Springs - 4.57x38.1x0.51 mm - Steel ES-0457-0381-05-M --- Extension Springs - 4.57x38.1x0.51 mm - Steel Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 75.950 mm	Spring Rate 0.280 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-06-M Extension Springs - 4.57x38.1x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.05 AUD Regular price Sale price $11.05 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 75.950 mm
Material: Steel Spring Rate: 0.280 N/mm Initial Tension (IT): 0.9 N Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-06-M Extension Springs - 4.57x38.1x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.05 AUD Regular price Sale price $11.05 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0381-06-M --- Extension Springs - 4.57x38.1x0.56 mm - Steel ES-0457-0381-06-M --- Extension Springs - 4.57x38.1x0.56 mm - Steel Regular price $11.05 AUD Regular price Sale price $11.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 56.900 mm	Spring Rate 1.243 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-07-M Extension Springs - 4.57x38.1x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 56.900 mm
Material: Steel Spring Rate: 1.243 N/mm Initial Tension (IT): 2.3 N Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-07-M Extension Springs - 4.57x38.1x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0381-07-M --- Extension Springs - 4.57x38.1x0.71 mm - Steel ES-0457-0381-07-M --- Extension Springs - 4.57x38.1x0.71 mm - Steel Regular price $11.95 AUD Regular price Sale price $11.95 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 53.090 mm	Spring Rate 1.839 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-08-M Extension Springs - 4.57x38.1x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 53.090 mm
Material: Steel Spring Rate: 1.839 N/mm Initial Tension (IT): 2.7 N Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-08-M Extension Springs - 4.57x38.1x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0381-08-M --- Extension Springs - 4.57x38.1x0.79 mm - Steel ES-0457-0381-08-M --- Extension Springs - 4.57x38.1x0.79 mm - Steel Regular price $12.14 AUD Regular price Sale price $12.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 50.040 mm	Spring Rate 3.010 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-09-M Extension Springs - 4.57x38.1x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.86 AUD Regular price Sale price $12.86 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 50.040 mm
Material: Steel Spring Rate: 3.010 N/mm Initial Tension (IT): 3.6 N Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0381-09-M Extension Springs - 4.57x38.1x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.86 AUD Regular price Sale price $12.86 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0381-09-M --- Extension Springs - 4.57x38.1x0.89 mm - Steel ES-0457-0381-09-M --- Extension Springs - 4.57x38.1x0.89 mm - Steel Regular price $12.86 AUD Regular price Sale price $12.86 AUD Unit price per Out of stock! Backorder Now