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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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 56.640 mm	Spring Rate 0.140 N/mm	Initial Tension (IT) 0.4 N
Material: Steel Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0254-04-M Extension Springs - 3.05x25.4x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $9.59 AUD Regular price Sale price $9.59 AUD Unit price per Each
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 56.640 mm
Material: Steel Spring Rate: 0.140 N/mm Initial Tension (IT): 0.4 N Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0254-04-M Extension Springs - 3.05x25.4x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $9.59 AUD Regular price Sale price $9.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0305-0254-04-M --- Extension Springs - 3.05x25.4x0.36 mm - Steel ES-0305-0254-04-M --- Extension Springs - 3.05x25.4x0.36 mm - Steel Regular price $9.59 AUD Regular price Sale price $9.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 40.640 mm	Spring Rate 0.578 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0254-05-M Extension Springs - 3.05x25.4x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $9.95 AUD Regular price Sale price $9.95 AUD Unit price per Each
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 40.640 mm
Material: Steel Spring Rate: 0.578 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0254-05-M Extension Springs - 3.05x25.4x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $9.95 AUD Regular price Sale price $9.95 AUD Unit price per Each View the product page first if you are unsure.
ES-0305-0254-05-M --- Extension Springs - 3.05x25.4x0.46 mm - Steel ES-0305-0254-05-M --- Extension Springs - 3.05x25.4x0.46 mm - Steel Regular price $9.95 AUD Regular price Sale price $9.95 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 34.540 mm	Spring Rate 1.699 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0254-06-M Extension Springs - 3.05x25.4x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Each
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 25.4 mm _{(1 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 34.540 mm
Material: Steel Spring Rate: 1.699 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0254-06-M Extension Springs - 3.05x25.4x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0305-0254-06-M --- Extension Springs - 3.05x25.4x0.56 mm - Steel ES-0305-0254-06-M --- Extension Springs - 3.05x25.4x0.56 mm - Steel Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 72.900 mm	Spring Rate 0.105 N/mm	Initial Tension (IT) 0.4 N
Material: Steel Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0318-04-M Extension Springs - 3.05x31.8x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $9.68 AUD Regular price Sale price $9.68 AUD Unit price per Each
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 72.900 mm
Material: Steel Spring Rate: 0.105 N/mm Initial Tension (IT): 0.4 N Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0318-04-M Extension Springs - 3.05x31.8x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $9.68 AUD Regular price Sale price $9.68 AUD Unit price per Each View the product page first if you are unsure.
ES-0305-0318-04-M --- Extension Springs - 3.05x31.8x0.36 mm - Steel ES-0305-0318-04-M --- Extension Springs - 3.05x31.8x0.36 mm - Steel Regular price $9.68 AUD Regular price Sale price $9.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 51.560 mm	Spring Rate 0.438 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0318-05-M Extension Springs - 3.05x31.8x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Each
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 51.560 mm
Material: Steel Spring Rate: 0.438 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0318-05-M Extension Springs - 3.05x31.8x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0305-0318-05-M --- Extension Springs - 3.05x31.8x0.46 mm - Steel ES-0305-0318-05-M --- Extension Springs - 3.05x31.8x0.46 mm - Steel Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 43.940 mm	Spring Rate 1.296 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0318-06-M Extension Springs - 3.05x31.8x0.56 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 31.8 mm _{(1.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 43.940 mm
Material: Steel Spring Rate: 1.296 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0318-06-M Extension Springs - 3.05x31.8x0.56 mm - 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-0305-0318-06-M --- Extension Springs - 3.05x31.8x0.56 mm - Steel ES-0305-0318-06-M --- Extension Springs - 3.05x31.8x0.56 mm - Steel Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 89.150 mm	Spring Rate 0.088 N/mm	Initial Tension (IT) 0.4 N
Material: Steel Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0381-04-M Extension Springs - 3.05x38.1x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Each
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 89.150 mm
Material: Steel Spring Rate: 0.088 N/mm Initial Tension (IT): 0.4 N Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0381-04-M Extension Springs - 3.05x38.1x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jul 08, 2025 Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0305-0381-04-M --- Extension Springs - 3.05x38.1x0.36 mm - Steel ES-0305-0381-04-M --- Extension Springs - 3.05x38.1x0.36 mm - Steel Regular price $10.14 AUD Regular price Sale price $10.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 62.740 mm	Spring Rate 0.350 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0381-05-M Extension Springs - 3.05x38.1x0.46 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 62.740 mm
Material: Steel Spring Rate: 0.350 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0381-05-M Extension Springs - 3.05x38.1x0.46 mm - 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-0305-0381-05-M --- Extension Springs - 3.05x38.1x0.46 mm - Steel ES-0305-0381-05-M --- Extension Springs - 3.05x38.1x0.46 mm - Steel Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 53.090 mm	Spring Rate 1.051 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0381-06-M Extension Springs - 3.05x38.1x0.56 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 53.090 mm
Material: Steel Spring Rate: 1.051 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0381-06-M Extension Springs - 3.05x38.1x0.56 mm - 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-0305-0381-06-M --- Extension Springs - 3.05x38.1x0.56 mm - Steel ES-0305-0381-06-M --- Extension Springs - 3.05x38.1x0.56 mm - Steel Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 73.660 mm	Spring Rate 0.298 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0445-05-M Extension Springs - 3.05x44.5x0.46 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 73.660 mm
Material: Steel Spring Rate: 0.298 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0445-05-M Extension Springs - 3.05x44.5x0.46 mm - 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-0305-0445-05-M --- Extension Springs - 3.05x44.5x0.46 mm - Steel ES-0305-0445-05-M --- Extension Springs - 3.05x44.5x0.46 mm - Steel Regular price $10.59 AUD Regular price Sale price $10.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 62.230 mm	Spring Rate 0.876 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0445-06-M Extension Springs - 3.05x44.5x0.56 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 44.5 mm _{(1.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 62.230 mm
Material: Steel Spring Rate: 0.876 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0445-06-M Extension Springs - 3.05x44.5x0.56 mm - 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-0305-0445-06-M --- Extension Springs - 3.05x44.5x0.56 mm - Steel ES-0305-0445-06-M --- Extension Springs - 3.05x44.5x0.56 mm - Steel Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 84.840 mm	Spring Rate 2.450 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0508-05-M Extension Springs - 3.05x50.8x0.46 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 84.840 mm
Material: Steel Spring Rate: 2.450 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0508-05-M Extension Springs - 3.05x50.8x0.46 mm - 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-0305-0508-05-M --- Extension Springs - 3.05x50.8x0.46 mm - Steel ES-0305-0508-05-M --- Extension Springs - 3.05x50.8x0.46 mm - Steel Regular price $10.77 AUD Regular price Sale price $10.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 71.630 mm	Spring Rate 0.753 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0508-06-M Extension Springs - 3.05x50.8x0.56 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 50.8 mm _{(2 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 71.630 mm
Material: Steel Spring Rate: 0.753 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0508-06-M Extension Springs - 3.05x50.8x0.56 mm - 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-0305-0508-06-M --- Extension Springs - 3.05x50.8x0.56 mm - Steel ES-0305-0508-06-M --- Extension Springs - 3.05x50.8x0.56 mm - Steel Regular price $11.05 AUD Regular price Sale price $11.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 98.810 mm	Spring Rate 0.228 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0572-05-M Extension Springs - 3.05x57.2x0.46 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 98.810 mm
Material: Steel Spring Rate: 0.228 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0572-05-M Extension Springs - 3.05x57.2x0.46 mm - 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-0305-0572-05-M --- Extension Springs - 3.05x57.2x0.46 mm - Steel ES-0305-0572-05-M --- Extension Springs - 3.05x57.2x0.46 mm - Steel Regular price $11.05 AUD Regular price Sale price $11.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 80.770 mm	Spring Rate 0.666 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0572-06-M Extension Springs - 3.05x57.2x0.56 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 57.2 mm _{(2.252 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 80.770 mm
Material: Steel Spring Rate: 0.666 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0572-06-M Extension Springs - 3.05x57.2x0.56 mm - 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-0305-0572-06-M --- Extension Springs - 3.05x57.2x0.56 mm - Steel ES-0305-0572-06-M --- Extension Springs - 3.05x57.2x0.56 mm - Steel Regular price $11.50 AUD Regular price Sale price $11.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 89.920 mm	Spring Rate 0.595 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0635-06-M Extension Springs - 3.05x63.5x0.56 mm - 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) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 63.5 mm _{(2.5 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 89.920 mm
Material: Steel Spring Rate: 0.595 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0635-06-M Extension Springs - 3.05x63.5x0.56 mm - 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-0305-0635-06-M --- Extension Springs - 3.05x63.5x0.56 mm - Steel ES-0305-0635-06-M --- Extension Springs - 3.05x63.5x0.56 mm - Steel Regular price $11.68 AUD Regular price Sale price $11.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.18 mm _{(0.125 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 0.38 mm _{(0.015 in.)}		Spring Rate 0.02 N/mm	Initial Tension (IT) 0.0 N
Material: Steel
Part Number: ES-0318-1524-04-M Extension Springs - 3.18x152.4x0.38 mm - Steel 5 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $8.32 AUD Regular price ~~$9.98 AUD~~ Sale price $8.32 AUD Unit price per Each
OD (D0) 3.18 mm _{(0.125 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 0.38 mm _{(0.015 in.)}
Material: Steel Spring Rate: 0.02 N/mm Initial Tension (IT): 0.0 N
Part Number: ES-0318-1524-04-M Extension Springs - 3.18x152.4x0.38 mm - Steel 5 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $8.32 AUD Regular price ~~$9.98 AUD~~ Sale price $8.32 AUD Unit price per Each View the product page first if you are unsure.
ES-0318-1524-04-M --- Extension Springs - 3.18x152.4x0.38 mm - Steel Sale ES-0318-1524-04-M --- Extension Springs - 3.18x152.4x0.38 mm - Steel Regular price $8.32 AUD Regular price ~~$9.98 AUD~~ Sale price $8.32 AUD Unit price per 5 Available Now Sale
OD (D0) 3.18 mm _{(0.125 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 0.38 mm _{(0.015 in.)}		Spring Rate 0.02 N/mm	Initial Tension (IT) 0.0 N
Material: Steel
Part Number: ES-0318-2032-04-M Extension Springs - 3.18x203.2x0.38 mm - Steel 5 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $7.68 AUD Regular price ~~$9.22 AUD~~ Sale price $7.68 AUD Unit price per Each
OD (D0) 3.18 mm _{(0.125 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 0.38 mm _{(0.015 in.)}
Material: Steel Spring Rate: 0.02 N/mm Initial Tension (IT): 0.0 N
Part Number: ES-0318-2032-04-M Extension Springs - 3.18x203.2x0.38 mm - Steel 5 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $7.68 AUD Regular price ~~$9.22 AUD~~ Sale price $7.68 AUD Unit price per Each View the product page first if you are unsure.
ES-0318-2032-04-M --- Extension Springs - 3.18x203.2x0.38 mm - Steel Sale ES-0318-2032-04-M --- Extension Springs - 3.18x203.2x0.38 mm - Steel Regular price $7.68 AUD Regular price ~~$9.22 AUD~~ Sale price $7.68 AUD Unit price per 5 Available Now Sale
OD (D0) 3.18 mm _{(0.125 in.)}	Overall Length (L0) 279.4 mm _{(11 in.)}	Wire Diameter (d) 0.41 mm _{(0.016 in.)}		Spring Rate 0.02 N/mm	Initial Tension (IT) 0.0 N
Material: Steel
Part Number: ES-0318-2794-04-M Extension Springs - 3.18x279.4x0.41 mm - Steel 8 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $6.86 AUD Regular price ~~$8.24 AUD~~ Sale price $6.86 AUD Unit price per Each
OD (D0) 3.18 mm _{(0.125 in.)}	Overall Length (L0) 279.4 mm _{(11 in.)}	Wire Diameter (d) 0.41 mm _{(0.016 in.)}
Material: Steel Spring Rate: 0.02 N/mm Initial Tension (IT): 0.0 N
Part Number: ES-0318-2794-04-M Extension Springs - 3.18x279.4x0.41 mm - Steel 8 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $6.86 AUD Regular price ~~$8.24 AUD~~ Sale price $6.86 AUD Unit price per Each View the product page first if you are unsure.
ES-0318-2794-04-M --- Extension Springs - 3.18x279.4x0.41 mm - Steel Sale ES-0318-2794-04-M --- Extension Springs - 3.18x279.4x0.41 mm - Steel Regular price $6.86 AUD Regular price ~~$8.24 AUD~~ Sale price $6.86 AUD Unit price per 8 Available Now Sale
OD (D0) 3.20 mm _{(0.126 in.)}	Overall Length (L0) 107.0 mm _{(4.213 in.)}	Wire Diameter (d) 0.40 mm _{(0.016 in.)}			Initial Tension (IT) 0.0 N
Material: Steel Body Length: 101.600 mm End Type: Closed - Full Loop
Part Number: ES-0318-1070-04-M Extension Springs - 3.2x107x0.4 mm - 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) 3.20 mm _{(0.126 in.)}	Overall Length (L0) 107.0 mm _{(4.213 in.)}	Wire Diameter (d) 0.40 mm _{(0.016 in.)}
Material: Steel Initial Tension (IT): 0.0 N Body Length: 101.600 mm End Type: Closed - Full Loop
Part Number: ES-0318-1070-04-M Extension Springs - 3.2x107x0.4 mm - 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-0318-1070-04-M --- Extension Springs - 3.2x107x0.4 mm - Steel ES-0318-1070-04-M --- Extension Springs - 3.2x107x0.4 mm - Steel Regular price $11.23 AUD Regular price Sale price $11.23 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}		Spring Rate 0.25 N/mm	Initial Tension (IT) 0.3 N
Material: Steel - Zinc
Part Number: ES-0396-0381-05-M Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $7.41 AUD Regular price Sale price $7.41 AUD Unit price per Each
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 38.1 mm _{(1.5 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}
Material: Steel - Zinc Spring Rate: 0.25 N/mm Initial Tension (IT): 0.3 N
Part Number: ES-0396-0381-05-M Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $7.41 AUD Regular price Sale price $7.41 AUD Unit price per Each View the product page first if you are unsure.
ES-0396-0381-05-M --- Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc ES-0396-0381-05-M --- Extension Springs - 3.96x38.1x0.51 mm - Steel - Zinc Regular price $7.41 AUD Regular price Sale price $7.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}		Spring Rate 0.06 N/mm	Initial Tension (IT) 0.1 N
Material: Steel
Part Number: ES-0396-1524-05-M Extension Springs - 3.96x152.4x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $16.14 AUD Regular price Sale price $16.14 AUD Unit price per Each
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 0.51 mm _{(0.02 in.)}
Material: Steel Spring Rate: 0.06 N/mm Initial Tension (IT): 0.1 N
Part Number: ES-0396-1524-05-M Extension Springs - 3.96x152.4x0.51 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $16.14 AUD Regular price Sale price $16.14 AUD Unit price per Each View the product page first if you are unsure.
ES-0396-1524-05-M --- Extension Springs - 3.96x152.4x0.51 mm - Steel ES-0396-1524-05-M --- Extension Springs - 3.96x152.4x0.51 mm - Steel Regular price $16.14 AUD Regular price Sale price $16.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 279.4 mm _{(11 in.)}	Wire Diameter (d) 0.41 mm _{(0.016 in.)}		Spring Rate 0.01 N/mm	Initial Tension (IT) 0.0 N
Material: Steel
Part Number: ES-0396-2794-04-M Extension Springs - 3.96x279.4x0.41 mm - Steel 9 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $5.59 AUD Regular price Sale price $5.59 AUD Unit price per Each
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 279.4 mm _{(11 in.)}	Wire Diameter (d) 0.41 mm _{(0.016 in.)}
Material: Steel Spring Rate: 0.01 N/mm Initial Tension (IT): 0.0 N
Part Number: ES-0396-2794-04-M Extension Springs - 3.96x279.4x0.41 mm - Steel 9 Available Immediately \| Further orders can be expected around Tue, Jun 03, 2025 Regular price $5.59 AUD Regular price Sale price $5.59 AUD Unit price per Each View the product page first if you are unsure.
ES-0396-2794-04-M --- Extension Springs - 3.96x279.4x0.41 mm - Steel ES-0396-2794-04-M --- Extension Springs - 3.96x279.4x0.41 mm - Steel Regular price $5.59 AUD Regular price Sale price $5.59 AUD Unit price per 9 Available Now
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 279.4 mm _{(11 in.)}	Wire Diameter (d) 0.61 mm _{(0.024 in.)}		Spring Rate 0.08 N/mm	Initial Tension (IT) 0.1 N
Material: Steel
Part Number: ES-0396-2794-06-M Extension Springs - 3.96x279.4x0.61 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $10.50 AUD Regular price Sale price $10.50 AUD Unit price per Each
OD (D0) 3.96 mm _{(0.156 in.)}	Overall Length (L0) 279.4 mm _{(11 in.)}	Wire Diameter (d) 0.61 mm _{(0.024 in.)}
Material: Steel Spring Rate: 0.08 N/mm Initial Tension (IT): 0.1 N
Part Number: ES-0396-2794-06-M Extension Springs - 3.96x279.4x0.61 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Tue, Jun 03, 2025 Regular price $10.50 AUD Regular price Sale price $10.50 AUD Unit price per Each View the product page first if you are unsure.
ES-0396-2794-06-M --- Extension Springs - 3.96x279.4x0.61 mm - Steel ES-0396-2794-06-M --- Extension Springs - 3.96x279.4x0.61 mm - Steel Regular price $10.50 AUD Regular price Sale price $10.50 AUD Unit price per Out of stock! Backorder Now