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Collection: Springs - Extension

Springs (With Images)

Extension

1098 Products in this selection

This is a combined category of Extension Springs.
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Springs - Extension

Additional resources:
Spings Catalogue PDF
Spring Anchors

A more concise listing may be found on the Smallparts store at Springs - Extension. 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) 38.10 mm _{(1.5 in.)}	Overall Length (L0) 914.0 mm _{(35.984 in.)}	Wire Diameter (d) 4.12 mm _{(0.162 in.)}		Spring Rate 12.05 N/mm	Initial Tension (IT) 12.0 N
Material: Steel - None Category: Springs - Extension - Stainless Steel
Part Number: ES-3810-9140-41-S2 Extension Springs - 38.1x914x4.12 mm - Steel - None Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 02, 2025 Regular price $286.50 AUD Regular price Sale price $286.50 AUD Unit price per Each
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 38.10 mm _{(1.5 in.)}	Overall Length (L0) 914.0 mm _{(35.984 in.)}	Wire Diameter (d) 4.12 mm _{(0.162 in.)}
Material: Steel - None Spring Rate: 12.05 N/mm Initial Tension (IT): 12.0 N Category: Springs - Extension - Stainless Steel
Part Number: ES-3810-9140-41-S2 Extension Springs - 38.1x914x4.12 mm - Steel - None Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 02, 2025 Regular price $286.50 AUD Regular price Sale price $286.50 AUD Unit price per Each View the product page first if you are unsure.
ES-3810-9140-41-S2 --- Extension Springs - 38.1x914x4.12 mm - Steel - None ES-3810-9140-41-S2 --- Extension Springs - 38.1x914x4.12 mm - Steel - None Regular price $286.50 AUD Regular price Sale price $286.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 127.0 mm _{(5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 226.060 mm	Spring Rate 3.696 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1270-40-M Extension Springs - 44.45x127x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $151.05 AUD Regular price Sale price $151.05 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 127.0 mm _{(5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 226.060 mm
Material: Steel Spring Rate: 3.696 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1270-40-M Extension Springs - 44.45x127x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $151.05 AUD Regular price Sale price $151.05 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1270-40-M --- Extension Springs - 44.45x127x4.01 mm - Steel ES-4445-1270-40-M --- Extension Springs - 44.45x127x4.01 mm - Steel Regular price $151.05 AUD Regular price Sale price $151.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 127.0 mm _{(5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 193.550 mm	Spring Rate 6.410 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1270-45-M Extension Springs - 44.45x127x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $178.95 AUD Regular price Sale price $178.95 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 127.0 mm _{(5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 193.550 mm
Material: Steel Spring Rate: 6.410 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1270-45-M Extension Springs - 44.45x127x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $178.95 AUD Regular price Sale price $178.95 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1270-45-M --- Extension Springs - 44.45x127x4.5 mm - Steel ES-4445-1270-45-M --- Extension Springs - 44.45x127x4.5 mm - Steel Regular price $178.95 AUD Regular price Sale price $178.95 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 127.0 mm _{(5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 173.740 mm	Spring Rate 10.757 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1270-50-M Extension Springs - 44.45x127x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $211.14 AUD Regular price Sale price $211.14 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 127.0 mm _{(5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 173.740 mm
Material: Steel Spring Rate: 10.757 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1270-50-M Extension Springs - 44.45x127x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $211.14 AUD Regular price Sale price $211.14 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1270-50-M --- Extension Springs - 44.45x127x5 mm - Steel ES-4445-1270-50-M --- Extension Springs - 44.45x127x5 mm - Steel Regular price $211.14 AUD Regular price Sale price $211.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 139.7 mm _{(5.5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 268.730 mm	Spring Rate 2.838 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1397-40-M Extension Springs - 44.45x139.7x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $162.95 AUD Regular price Sale price $162.95 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 139.7 mm _{(5.5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 268.730 mm
Material: Steel Spring Rate: 2.838 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1397-40-M Extension Springs - 44.45x139.7x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $162.95 AUD Regular price Sale price $162.95 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1397-40-M --- Extension Springs - 44.45x139.7x4.01 mm - Steel ES-4445-1397-40-M --- Extension Springs - 44.45x139.7x4.01 mm - Steel Regular price $162.95 AUD Regular price Sale price $162.95 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 139.7 mm _{(5.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 225.300 mm	Spring Rate 4.990 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1397-45-M Extension Springs - 44.45x139.7x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $192.32 AUD Regular price Sale price $192.32 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 139.7 mm _{(5.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 225.300 mm
Material: Steel Spring Rate: 4.990 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1397-45-M Extension Springs - 44.45x139.7x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $192.32 AUD Regular price Sale price $192.32 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1397-45-M --- Extension Springs - 44.45x139.7x4.5 mm - Steel ES-4445-1397-45-M --- Extension Springs - 44.45x139.7x4.5 mm - Steel Regular price $192.32 AUD Regular price Sale price $192.32 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 139.7 mm _{(5.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 199.140 mm	Spring Rate 8.462 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1397-50-M Extension Springs - 44.45x139.7x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $229.05 AUD Regular price Sale price $229.05 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 139.7 mm _{(5.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 199.140 mm
Material: Steel Spring Rate: 8.462 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1397-50-M Extension Springs - 44.45x139.7x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $229.05 AUD Regular price Sale price $229.05 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1397-50-M --- Extension Springs - 44.45x139.7x5 mm - Steel ES-4445-1397-50-M --- Extension Springs - 44.45x139.7x5 mm - Steel Regular price $229.05 AUD Regular price Sale price $229.05 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 311.400 mm	Spring Rate 2.312 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1524-40-M Extension Springs - 44.45x152.4x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $173.77 AUD Regular price Sale price $173.77 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 311.400 mm
Material: Steel Spring Rate: 2.312 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1524-40-M Extension Springs - 44.45x152.4x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $173.77 AUD Regular price Sale price $173.77 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1524-40-M --- Extension Springs - 44.45x152.4x4.01 mm - Steel ES-4445-1524-40-M --- Extension Springs - 44.45x152.4x4.01 mm - Steel Regular price $173.77 AUD Regular price Sale price $173.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 257.050 mm	Spring Rate 4.080 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1524-45-M Extension Springs - 44.45x152.4x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $207.77 AUD Regular price Sale price $207.77 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 257.050 mm
Material: Steel Spring Rate: 4.080 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1524-45-M Extension Springs - 44.45x152.4x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $207.77 AUD Regular price Sale price $207.77 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1524-45-M --- Extension Springs - 44.45x152.4x4.5 mm - Steel ES-4445-1524-45-M --- Extension Springs - 44.45x152.4x4.5 mm - Steel Regular price $207.77 AUD Regular price Sale price $207.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 224.280 mm	Spring Rate 6.973 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1524-50-M Extension Springs - 44.45x152.4x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $247.59 AUD Regular price Sale price $247.59 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 152.4 mm _{(6 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 224.280 mm
Material: Steel Spring Rate: 6.973 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1524-50-M Extension Springs - 44.45x152.4x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $247.59 AUD Regular price Sale price $247.59 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1524-50-M --- Extension Springs - 44.45x152.4x5 mm - Steel ES-4445-1524-50-M --- Extension Springs - 44.45x152.4x5 mm - Steel Regular price $247.59 AUD Regular price Sale price $247.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 165.1 mm _{(6.5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 353.820 mm	Spring Rate 1.962 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1651-40-M Extension Springs - 44.45x165.1x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $184.86 AUD Regular price Sale price $184.86 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 165.1 mm _{(6.5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 353.820 mm
Material: Steel Spring Rate: 1.962 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1651-40-M Extension Springs - 44.45x165.1x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $184.86 AUD Regular price Sale price $184.86 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1651-40-M --- Extension Springs - 44.45x165.1x4.01 mm - Steel ES-4445-1651-40-M --- Extension Springs - 44.45x165.1x4.01 mm - Steel Regular price $184.86 AUD Regular price Sale price $184.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 165.1 mm _{(6.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 288.800 mm	Spring Rate 3.450 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1651-45-M Extension Springs - 44.45x165.1x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $222.41 AUD Regular price Sale price $222.41 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 165.1 mm _{(6.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 288.800 mm
Material: Steel Spring Rate: 3.450 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1651-45-M Extension Springs - 44.45x165.1x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $222.41 AUD Regular price Sale price $222.41 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1651-45-M --- Extension Springs - 44.45x165.1x4.5 mm - Steel ES-4445-1651-45-M --- Extension Springs - 44.45x165.1x4.5 mm - Steel Regular price $222.41 AUD Regular price Sale price $222.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 165.1 mm _{(6.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 249.680 mm	Spring Rate 5.939 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1651-50-M Extension Springs - 44.45x165.1x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $264.14 AUD Regular price Sale price $264.14 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 165.1 mm _{(6.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 249.680 mm
Material: Steel Spring Rate: 5.939 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1651-50-M Extension Springs - 44.45x165.1x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $264.14 AUD Regular price Sale price $264.14 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1651-50-M --- Extension Springs - 44.45x165.1x5 mm - Steel ES-4445-1651-50-M --- Extension Springs - 44.45x165.1x5 mm - Steel Regular price $264.14 AUD Regular price Sale price $264.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 177.8 mm _{(7 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 396.490 mm	Spring Rate 1.648 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1778-40-M Extension Springs - 44.45x177.8x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $195.86 AUD Regular price Sale price $195.86 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 177.8 mm _{(7 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 396.490 mm
Material: Steel Spring Rate: 1.648 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1778-40-M Extension Springs - 44.45x177.8x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $195.86 AUD Regular price Sale price $195.86 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1778-40-M --- Extension Springs - 44.45x177.8x4.01 mm - Steel ES-4445-1778-40-M --- Extension Springs - 44.45x177.8x4.01 mm - Steel Regular price $195.86 AUD Regular price Sale price $195.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 177.8 mm _{(7 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 320.290 mm	Spring Rate 2.990 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1778-45-M Extension Springs - 44.45x177.8x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $236.68 AUD Regular price Sale price $236.68 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 177.8 mm _{(7 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 320.290 mm
Material: Steel Spring Rate: 2.990 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1778-45-M Extension Springs - 44.45x177.8x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $236.68 AUD Regular price Sale price $236.68 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1778-45-M --- Extension Springs - 44.45x177.8x4.5 mm - Steel ES-4445-1778-45-M --- Extension Springs - 44.45x177.8x4.5 mm - Steel Regular price $236.68 AUD Regular price Sale price $236.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 177.8 mm _{(7 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 274.830 mm	Spring Rate 5.168 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1778-50-M Extension Springs - 44.45x177.8x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $283.68 AUD Regular price Sale price $283.68 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 177.8 mm _{(7 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 274.830 mm
Material: Steel Spring Rate: 5.168 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1778-50-M Extension Springs - 44.45x177.8x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $283.68 AUD Regular price Sale price $283.68 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1778-50-M --- Extension Springs - 44.45x177.8x5 mm - Steel ES-4445-1778-50-M --- Extension Springs - 44.45x177.8x5 mm - Steel Regular price $283.68 AUD Regular price Sale price $283.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 439.170 mm	Spring Rate 1.488 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1905-40-M Extension Springs - 44.45x190.5x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $208.23 AUD Regular price Sale price $208.23 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 439.170 mm
Material: Steel Spring Rate: 1.488 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1905-40-M Extension Springs - 44.45x190.5x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $208.23 AUD Regular price Sale price $208.23 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1905-40-M --- Extension Springs - 44.45x190.5x4.01 mm - Steel ES-4445-1905-40-M --- Extension Springs - 44.45x190.5x4.01 mm - Steel Regular price $208.23 AUD Regular price Sale price $208.23 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 352.040 mm	Spring Rate 2.640 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1905-45-M Extension Springs - 44.45x190.5x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $252.68 AUD Regular price Sale price $252.68 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 352.040 mm
Material: Steel Spring Rate: 2.640 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1905-45-M Extension Springs - 44.45x190.5x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $252.68 AUD Regular price Sale price $252.68 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1905-45-M --- Extension Springs - 44.45x190.5x4.5 mm - Steel ES-4445-1905-45-M --- Extension Springs - 44.45x190.5x4.5 mm - Steel Regular price $252.68 AUD Regular price Sale price $252.68 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 300.230 mm	Spring Rate 4.555 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1905-50-M Extension Springs - 44.45x190.5x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $303.50 AUD Regular price Sale price $303.50 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 190.5 mm _{(7.5 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 300.230 mm
Material: Steel Spring Rate: 4.555 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-1905-50-M Extension Springs - 44.45x190.5x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $303.50 AUD Regular price Sale price $303.50 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-1905-50-M --- Extension Springs - 44.45x190.5x5 mm - Steel ES-4445-1905-50-M --- Extension Springs - 44.45x190.5x5 mm - Steel Regular price $303.50 AUD Regular price Sale price $303.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 481.840 mm	Spring Rate 1.312 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2032-40-M Extension Springs - 44.45x203.2x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $224.50 AUD Regular price Sale price $224.50 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 481.840 mm
Material: Steel Spring Rate: 1.312 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2032-40-M Extension Springs - 44.45x203.2x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $224.50 AUD Regular price Sale price $224.50 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-2032-40-M --- Extension Springs - 44.45x203.2x4.01 mm - Steel ES-4445-2032-40-M --- Extension Springs - 44.45x203.2x4.01 mm - Steel Regular price $224.50 AUD Regular price Sale price $224.50 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 383.790 mm	Spring Rate 2.360 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2032-45-M Extension Springs - 44.45x203.2x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $266.86 AUD Regular price Sale price $266.86 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 383.790 mm
Material: Steel Spring Rate: 2.360 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2032-45-M Extension Springs - 44.45x203.2x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $266.86 AUD Regular price Sale price $266.86 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-2032-45-M --- Extension Springs - 44.45x203.2x4.5 mm - Steel ES-4445-2032-45-M --- Extension Springs - 44.45x203.2x4.5 mm - Steel Regular price $266.86 AUD Regular price Sale price $266.86 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 325.630 mm	Spring Rate 4.081 N/mm	Initial Tension (IT) 64.9 N
Material: Steel Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2032-50-M Extension Springs - 44.45x203.2x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $312.41 AUD Regular price Sale price $312.41 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 203.2 mm _{(8 in.)}	Wire Diameter (d) 5.00 mm _{(0.197 in.)}	Max. Extension (L1) 325.630 mm
Material: Steel Spring Rate: 4.081 N/mm Initial Tension (IT): 64.9 N Load at L1: 564.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2032-50-M Extension Springs - 44.45x203.2x5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $312.41 AUD Regular price Sale price $312.41 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-2032-50-M --- Extension Springs - 44.45x203.2x5 mm - Steel ES-4445-2032-50-M --- Extension Springs - 44.45x203.2x5 mm - Steel Regular price $312.41 AUD Regular price Sale price $312.41 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 567.180 mm	Spring Rate 0.840 N/mm	Initial Tension (IT) 25.8 N
Material: Steel Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2286-40-M Extension Springs - 44.45x228.6x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $246.77 AUD Regular price Sale price $246.77 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 4.01 mm _{(0.158 in.)}	Max. Extension (L1) 567.180 mm
Material: Steel Spring Rate: 0.840 N/mm Initial Tension (IT): 25.8 N Load at L1: 392.040 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2286-40-M Extension Springs - 44.45x228.6x4.01 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $246.77 AUD Regular price Sale price $246.77 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-2286-40-M --- Extension Springs - 44.45x228.6x4.01 mm - Steel ES-4445-2286-40-M --- Extension Springs - 44.45x228.6x4.01 mm - Steel Regular price $246.77 AUD Regular price Sale price $246.77 AUD Unit price per Out of stock! Backorder Now
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 447.290 mm	Spring Rate 1.961 N/mm	Initial Tension (IT) 42.3 N
Material: Steel Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2286-45-M Extension Springs - 44.45x228.6x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $301.86 AUD Regular price Sale price $301.86 AUD Unit price per Each
OD (D0) 44.45 mm _{(1.75 in.)}	Overall Length (L0) 228.6 mm _{(9 in.)}	Wire Diameter (d) 4.50 mm _{(0.177 in.)}	Max. Extension (L1) 447.290 mm
Material: Steel Spring Rate: 1.961 N/mm Initial Tension (IT): 42.3 N Load at L1: 469.330 N Category: Springs - Extension - Music Wire
Part Number: ES-4445-2286-45-M Extension Springs - 44.45x228.6x4.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $301.86 AUD Regular price Sale price $301.86 AUD Unit price per Each View the product page first if you are unsure.
ES-4445-2286-45-M --- Extension Springs - 44.45x228.6x4.5 mm - Steel ES-4445-2286-45-M --- Extension Springs - 44.45x228.6x4.5 mm - Steel Regular price $301.86 AUD Regular price Sale price $301.86 AUD Unit price per Out of stock! Backorder Now