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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) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 105.160 mm	Spring Rate 0.140 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0445-05-M Extension Springs - 4.57x44.5x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.86 AUD Regular price Sale price $10.86 AUD Unit price per Each
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 105.160 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.86 AUD Regular price Sale price $10.86 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0445-05-M --- Extension Springs - 4.57x44.5x0.51 mm - Steel ES-0457-0445-05-M --- Extension Springs - 4.57x44.5x0.51 mm - Steel Regular price $10.86 AUD Regular price Sale price $10.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 90.170 mm	Spring Rate 0.228 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0445-06-M Extension Springs - 4.57x44.5x0.56 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) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 90.170 mm
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 - 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-0457-0445-06-M --- Extension Springs - 4.57x44.5x0.56 mm - Steel ES-0457-0445-06-M --- Extension Springs - 4.57x44.5x0.56 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) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 67.310 mm	Spring Rate 1.033 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0445-07-M Extension Springs - 4.57x44.5x0.71 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) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 67.310 mm
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 - 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-0457-0445-07-M --- Extension Springs - 4.57x44.5x0.71 mm - Steel ES-0457-0445-07-M --- Extension Springs - 4.57x44.5x0.71 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) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 62.480 mm	Spring Rate 1.524 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0445-08-M Extension Springs - 4.57x44.5x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.41 AUD Regular price Sale price $12.41 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 62.480 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.41 AUD Regular price Sale price $12.41 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0445-08-M --- Extension Springs - 4.57x44.5x0.79 mm - Steel ES-0457-0445-08-M --- Extension Springs - 4.57x44.5x0.79 mm - Steel Regular price $12.41 AUD Regular price Sale price $12.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 58.930 mm	Spring Rate 2.500 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0445-09-M Extension Springs - 4.57x44.5x0.89 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) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 58.930 mm
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 - 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-0457-0445-09-M --- Extension Springs - 4.57x44.5x0.89 mm - Steel ES-0457-0445-09-M --- Extension Springs - 4.57x44.5x0.89 mm - Steel Regular price $12.86 AUD Regular price Sale price $12.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 122.170 mm	Spring Rate 0.123 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0508-05-M Extension Springs - 4.57x50.8x0.51 mm - Steel 2 Available Immediately \| Further orders can be expected around Tue, Jul 08, 2025 Regular price $10.86 AUD Regular price Sale price $10.86 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 122.170 mm
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 - Steel 2 Available Immediately \| Further orders can be expected around Tue, Jul 08, 2025 Regular price $10.86 AUD Regular price Sale price $10.86 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0508-05-M --- Extension Springs - 4.57x50.8x0.51 mm - Steel ES-0457-0508-05-M --- Extension Springs - 4.57x50.8x0.51 mm - Steel Regular price $10.86 AUD Regular price Sale price $10.86 AUD Unit price per 2 Available Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 103.380 mm	Spring Rate 0.210 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0508-06-M Extension Springs - 4.57x50.8x0.56 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) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 103.380 mm
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 - 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-0457-0508-06-M --- Extension Springs - 4.57x50.8x0.56 mm - Steel ES-0457-0508-06-M --- Extension Springs - 4.57x50.8x0.56 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) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 77.470 mm	Spring Rate 0.876 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0508-07-M Extension Springs - 4.57x50.8x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.41 AUD Regular price Sale price $12.41 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 77.470 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.41 AUD Regular price Sale price $12.41 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0508-07-M --- Extension Springs - 4.57x50.8x0.71 mm - Steel ES-0457-0508-07-M --- Extension Springs - 4.57x50.8x0.71 mm - Steel Regular price $12.41 AUD Regular price Sale price $12.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 71.880 mm	Spring Rate 1.313 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0508-08-M Extension Springs - 4.57x50.8x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.59 AUD Regular price Sale price $12.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 71.880 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.59 AUD Regular price Sale price $12.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0508-08-M --- Extension Springs - 4.57x50.8x0.79 mm - Steel ES-0457-0508-08-M --- Extension Springs - 4.57x50.8x0.79 mm - Steel Regular price $12.59 AUD Regular price Sale price $12.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 67.820 mm	Spring Rate 2.140 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0508-09-M Extension Springs - 4.57x50.8x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.05 AUD Regular price Sale price $13.05 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 67.820 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.05 AUD Regular price Sale price $13.05 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0508-09-M --- Extension Springs - 4.57x50.8x0.89 mm - Steel ES-0457-0508-09-M --- Extension Springs - 4.57x50.8x0.89 mm - Steel Regular price $13.05 AUD Regular price Sale price $13.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 139.190 mm	Spring Rate 0.105 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0572-05-M Extension Springs - 4.57x57.2x0.51 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) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 139.190 mm
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 - 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-0457-0572-05-M --- Extension Springs - 4.57x57.2x0.51 mm - Steel ES-0457-0572-05-M --- Extension Springs - 4.57x57.2x0.51 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) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 121.410 mm	Spring Rate 0.175 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0572-06-M Extension Springs - 4.57x57.2x0.56 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) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 121.410 mm
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 - 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-0457-0572-06-M --- Extension Springs - 4.57x57.2x0.56 mm - Steel ES-0457-0572-06-M --- Extension Springs - 4.57x57.2x0.56 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) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 87.880 mm	Spring Rate 0.701 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0572-07-M Extension Springs - 4.57x57.2x0.71 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.59 AUD Regular price Sale price $12.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 87.880 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $12.59 AUD Regular price Sale price $12.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0572-07-M --- Extension Springs - 4.57x57.2x0.71 mm - Steel ES-0457-0572-07-M --- Extension Springs - 4.57x57.2x0.71 mm - Steel Regular price $12.59 AUD Regular price Sale price $12.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 81.280 mm	Spring Rate 1.138 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0572-08-M Extension Springs - 4.57x57.2x0.79 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) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 81.280 mm
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 - 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-0457-0572-08-M --- Extension Springs - 4.57x57.2x0.79 mm - Steel ES-0457-0572-08-M --- Extension Springs - 4.57x57.2x0.79 mm - Steel Regular price $12.86 AUD Regular price Sale price $12.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 76.710 mm	Spring Rate 1.874 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0572-09-M Extension Springs - 4.57x57.2x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.32 AUD Regular price Sale price $13.32 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 76.710 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.32 AUD Regular price Sale price $13.32 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0572-09-M --- Extension Springs - 4.57x57.2x0.89 mm - Steel ES-0457-0572-09-M --- Extension Springs - 4.57x57.2x0.89 mm - Steel Regular price $13.32 AUD Regular price Sale price $13.32 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 156.460 mm	Spring Rate 0.088 N/mm	Initial Tension (IT) 0.8 N
Material: Steel Load at L1: 9.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0635-05-M Extension Springs - 4.57x63.5x0.51 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) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}	Max. Extension (L1) 156.460 mm
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 - 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-0457-0635-05-M --- Extension Springs - 4.57x63.5x0.51 mm - Steel ES-0457-0635-05-M --- Extension Springs - 4.57x63.5x0.51 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) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 136.140 mm	Spring Rate 0.158 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 11.570 N End Type: Closed - Full Loop
Part Number: ES-0457-0635-06-M Extension Springs - 4.57x63.5x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.77 AUD Regular price Sale price $11.77 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 136.140 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $11.77 AUD Regular price Sale price $11.77 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0635-06-M --- Extension Springs - 4.57x63.5x0.56 mm - Steel ES-0457-0635-06-M --- Extension Springs - 4.57x63.5x0.56 mm - Steel Regular price $11.77 AUD Regular price Sale price $11.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 98.040 mm	Spring Rate 0.683 N/mm	Initial Tension (IT) 2.3 N
Material: Steel Load at L1: 25.890 N End Type: Closed - Full Loop
Part Number: ES-0457-0635-07-M Extension Springs - 4.57x63.5x0.71 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) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.71 mm _{(0.028 in.)}	Max. Extension (L1) 98.040 mm
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 - 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-0457-0635-07-M --- Extension Springs - 4.57x63.5x0.71 mm - Steel ES-0457-0635-07-M --- Extension Springs - 4.57x63.5x0.71 mm - Steel Regular price $12.86 AUD Regular price Sale price $12.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 92.200 mm	Spring Rate 0.981 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0635-08-M Extension Springs - 4.57x63.5x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.05 AUD Regular price Sale price $13.05 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 92.200 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.05 AUD Regular price Sale price $13.05 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0635-08-M --- Extension Springs - 4.57x63.5x0.79 mm - Steel ES-0457-0635-08-M --- Extension Springs - 4.57x63.5x0.79 mm - Steel Regular price $13.05 AUD Regular price Sale price $13.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 85.340 mm	Spring Rate 1.664 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0635-09-M Extension Springs - 4.57x63.5x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 85.340 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0635-09-M --- Extension Springs - 4.57x63.5x0.89 mm - Steel ES-0457-0635-09-M --- Extension Springs - 4.57x63.5x0.89 mm - Steel Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 69.9 mm _{(2.752 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 101.850 mm	Spring Rate 0.893 N/mm	Initial Tension (IT) 2.7 N
Material: Steel Load at L1: 30.250 N End Type: Closed - Full Loop
Part Number: ES-0457-0699-08-M Extension Springs - 4.57x69.9x0.79 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.32 AUD Regular price Sale price $13.32 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 69.9 mm _{(2.752 in.)}	Wire Diameter (d) 0.79 mm _{(0.031 in.)}	Max. Extension (L1) 101.850 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $13.32 AUD Regular price Sale price $13.32 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0699-08-M --- Extension Springs - 4.57x69.9x0.79 mm - Steel ES-0457-0699-08-M --- Extension Springs - 4.57x69.9x0.79 mm - Steel Regular price $13.32 AUD Regular price Sale price $13.32 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 69.9 mm _{(2.752 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 94.230 mm	Spring Rate 1.489 N/mm	Initial Tension (IT) 3.6 N
Material: Steel Load at L1: 39.900 N End Type: Closed - Full Loop
Part Number: ES-0457-0699-09-M Extension Springs - 4.57x69.9x0.89 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $14.05 AUD Regular price Sale price $14.05 AUD Unit price per Each
OD (D0) 4.57 mm _{(0.18 in.)}	Overall Length (L0) 69.9 mm _{(2.752 in.)}	Wire Diameter (d) 0.89 mm _{(0.035 in.)}	Max. Extension (L1) 94.230 mm
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 - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $14.05 AUD Regular price Sale price $14.05 AUD Unit price per Each View the product page first if you are unsure.
ES-0457-0699-09-M --- Extension Springs - 4.57x69.9x0.89 mm - Steel ES-0457-0699-09-M --- Extension Springs - 4.57x69.9x0.89 mm - Steel Regular price $14.05 AUD Regular price Sale price $14.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.75 mm _{(0.187 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}		Spring Rate 0.40 N/mm	Initial Tension (IT) 0.4 N
Material: Steel - Zinc
Part Number: ES-0475-0254-06-M Extension Springs - 4.75x25.4x0.56 mm - Steel - Zinc Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $6.50 AUD Regular price Sale price $6.50 AUD Unit price per Each
OD (D0) 4.75 mm _{(0.187 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}
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 - Steel - Zinc Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $6.50 AUD Regular price Sale price $6.50 AUD Unit price per Each View the product page first if you are unsure.
ES-0475-0254-06-M --- Extension Springs - 4.75x25.4x0.56 mm - Steel - Zinc ES-0475-0254-06-M --- Extension Springs - 4.75x25.4x0.56 mm - Steel - Zinc Regular price $6.50 AUD Regular price Sale price $6.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 4.75 mm _{(0.187 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.41 mm _{(0.016 in.)}		Spring Rate 0.04 N/mm	Initial Tension (IT) 0.0 N
Material: Steel - Zinc
Part Number: ES-0475-0381-04-M Extension Springs - 4.75x38.1x0.41 mm - Steel - Zinc Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Each
OD (D0) 4.75 mm _{(0.187 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.41 mm _{(0.016 in.)}
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 - Steel - Zinc Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Each View the product page first if you are unsure.
ES-0475-0381-04-M --- Extension Springs - 4.75x38.1x0.41 mm - Steel - Zinc ES-0475-0381-04-M --- Extension Springs - 4.75x38.1x0.41 mm - Steel - Zinc Regular price $5.86 AUD Regular price Sale price $5.86 AUD Unit price per Out of stock! Backorder Now