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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) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 20.40 mm	Spring Rate 0.11 N/mm	Initial Tension (IT) 0.2 N
Material: Steel Load at L1: 1.27 N
Part Number: ES-0300-0100-025-M (5 Pcs) Extension Springs - 3x10x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Indicative Image
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 20.40 mm
Material: Steel Spring Rate: 0.11 N/mm Initial Tension (IT): 0.2 N Load at L1: 1.27 N
Part Number: ES-0300-0100-025-M (5 Pcs) Extension Springs - 3x10x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0100-025-M (5 Pcs) --- Extension Springs - 3x10x0.25 mm - Steel ES-0300-0100-025-M (5 Pcs) --- Extension Springs - 3x10x0.25 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 18.70 mm	Spring Rate 0.23 N/mm	Initial Tension (IT) 0.3 N
Material: Steel Load at L1: 2.25 N
Part Number: ES-0300-0100-03-M (5 Pcs) Extension Springs - 3x10x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 18.70 mm
Material: Steel Spring Rate: 0.23 N/mm Initial Tension (IT): 0.3 N Load at L1: 2.25 N
Part Number: ES-0300-0100-03-M (5 Pcs) Extension Springs - 3x10x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0100-03-M (5 Pcs) --- Extension Springs - 3x10x0.3 mm - Steel ES-0300-0100-03-M (5 Pcs) --- Extension Springs - 3x10x0.3 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.350 mm _{(0.014 in.)}	Max. Extension (L1) 14.60 mm	Spring Rate 0.59 N/mm	Initial Tension (IT) 0.7 N
Material: Steel Load at L1: 3.33 N
Part Number: ES-0300-0100-035-M (5 Pcs) Extension Springs - 3x10x0.35 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.350 mm _{(0.014 in.)}	Max. Extension (L1) 14.60 mm
Material: Steel Spring Rate: 0.59 N/mm Initial Tension (IT): 0.7 N Load at L1: 3.33 N
Part Number: ES-0300-0100-035-M (5 Pcs) Extension Springs - 3x10x0.35 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0100-035-M (5 Pcs) --- Extension Springs - 3x10x0.35 mm - Steel ES-0300-0100-035-M (5 Pcs) --- Extension Springs - 3x10x0.35 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.400 mm _{(0.016 in.)}	Max. Extension (L1) 13.50 mm	Spring Rate 0.98 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 4.41 N
Part Number: ES-0300-0100-04-M (50 Pcs) Extension Springs - 3x10x0.4 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.400 mm _{(0.016 in.)}	Max. Extension (L1) 13.50 mm
Material: Steel Spring Rate: 0.98 N/mm Initial Tension (IT): 0.9 N Load at L1: 4.41 N
Part Number: ES-0300-0100-04-M (50 Pcs) Extension Springs - 3x10x0.4 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50 View the product page first if you are unsure.
ES-0300-0100-04-M (50 Pcs) --- Extension Springs - 3x10x0.4 mm - Steel ES-0300-0100-04-M (50 Pcs) --- Extension Springs - 3x10x0.4 mm - Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 12.20 mm	Spring Rate 2.26 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 6.47 N
Part Number: ES-0300-0100-045-M (5 Pcs) Extension Springs - 3x10x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 12.20 mm
Material: Steel Spring Rate: 2.26 N/mm Initial Tension (IT): 1.6 N Load at L1: 6.47 N
Part Number: ES-0300-0100-045-M (5 Pcs) Extension Springs - 3x10x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0100-045-M (5 Pcs) --- Extension Springs - 3x10x0.45 mm - Steel ES-0300-0100-045-M (5 Pcs) --- Extension Springs - 3x10x0.45 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 12.00 mm	Spring Rate 3.24 N/mm	Initial Tension (IT) 2.2 N
Material: Steel Load at L1: 8.80 N
Part Number: ES-0300-0100-05-M (5 Pcs) Extension Springs - 3x10x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 10 mm _{(0.394 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 12.00 mm
Material: Steel Spring Rate: 3.24 N/mm Initial Tension (IT): 2.2 N Load at L1: 8.80 N
Part Number: ES-0300-0100-05-M (5 Pcs) Extension Springs - 3x10x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0100-05-M (5 Pcs) --- Extension Springs - 3x10x0.5 mm - Steel ES-0300-0100-05-M (5 Pcs) --- Extension Springs - 3x10x0.5 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 38.00 mm	Spring Rate 0.05 N/mm	Initial Tension (IT) 0.2 N
Material: Steel Load at L1: 1.27 N
Part Number: ES-0300-0150-025-M (5 Pcs) Extension Springs - 3x15x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 38.00 mm
Material: Steel Spring Rate: 0.05 N/mm Initial Tension (IT): 0.2 N Load at L1: 1.27 N
Part Number: ES-0300-0150-025-M (5 Pcs) Extension Springs - 3x15x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0150-025-M (5 Pcs) --- Extension Springs - 3x15x0.25 mm - Steel ES-0300-0150-025-M (5 Pcs) --- Extension Springs - 3x15x0.25 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 31.60 mm	Spring Rate 0.12 N/mm	Initial Tension (IT) 0.3 N
Material: Steel Load at L1: 2.25 N
Part Number: ES-0300-0150-03-M (5 Pcs) Extension Springs - 3x15x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 31.60 mm
Material: Steel Spring Rate: 0.12 N/mm Initial Tension (IT): 0.3 N Load at L1: 2.25 N
Part Number: ES-0300-0150-03-M (5 Pcs) Extension Springs - 3x15x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0150-03-M (5 Pcs) --- Extension Springs - 3x15x0.3 mm - Steel ES-0300-0150-03-M (5 Pcs) --- Extension Springs - 3x15x0.3 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.350 mm _{(0.014 in.)}	Max. Extension (L1) 24.10 mm	Spring Rate 0.29 N/mm	Initial Tension (IT) 0.7 N
Material: Steel Load at L1: 3.33 N
Part Number: ES-0300-0150-035-M (5 Pcs) Extension Springs - 3x15x0.35 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.350 mm _{(0.014 in.)}	Max. Extension (L1) 24.10 mm
Material: Steel Spring Rate: 0.29 N/mm Initial Tension (IT): 0.7 N Load at L1: 3.33 N
Part Number: ES-0300-0150-035-M (5 Pcs) Extension Springs - 3x15x0.35 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0150-035-M (5 Pcs) --- Extension Springs - 3x15x0.35 mm - Steel ES-0300-0150-035-M (5 Pcs) --- Extension Springs - 3x15x0.35 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.400 mm _{(0.016 in.)}	Max. Extension (L1) 21.00 mm	Spring Rate 0.59 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 4.41 N
Part Number: ES-0300-0150-04-M (5 Pcs) Extension Springs - 3x15x0.4 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.400 mm _{(0.016 in.)}	Max. Extension (L1) 21.00 mm
Material: Steel Spring Rate: 0.59 N/mm Initial Tension (IT): 0.9 N Load at L1: 4.41 N
Part Number: ES-0300-0150-04-M (5 Pcs) Extension Springs - 3x15x0.4 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0150-04-M (5 Pcs) --- Extension Springs - 3x15x0.4 mm - Steel ES-0300-0150-04-M (5 Pcs) --- Extension Springs - 3x15x0.4 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 19.50 mm	Spring Rate 1.08 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 6.47 N
Part Number: ES-0300-0150-045-M (5 Pcs) Extension Springs - 3x15x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 19.50 mm
Material: Steel Spring Rate: 1.08 N/mm Initial Tension (IT): 1.6 N Load at L1: 6.47 N
Part Number: ES-0300-0150-045-M (5 Pcs) Extension Springs - 3x15x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0150-045-M (5 Pcs) --- Extension Springs - 3x15x0.45 mm - Steel ES-0300-0150-045-M (5 Pcs) --- Extension Springs - 3x15x0.45 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 18.70 mm	Spring Rate 1.77 N/mm	Initial Tension (IT) 2.2 N
Material: Steel Load at L1: 8.80 N
Part Number: ES-0300-0150-05-M (50 Pcs) Extension Springs - 3x15x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 15 mm _{(0.591 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 18.70 mm
Material: Steel Spring Rate: 1.77 N/mm Initial Tension (IT): 2.2 N Load at L1: 8.80 N
Part Number: ES-0300-0150-05-M (50 Pcs) Extension Springs - 3x15x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50 View the product page first if you are unsure.
ES-0300-0150-05-M (50 Pcs) --- Extension Springs - 3x15x0.5 mm - Steel ES-0300-0150-05-M (50 Pcs) --- Extension Springs - 3x15x0.5 mm - Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 55.90 mm	Spring Rate 0.03 N/mm	Initial Tension (IT) 0.2 N
Material: Steel Load at L1: 1.27 N
Part Number: ES-0300-0200-025-M (5 Pcs) Extension Springs - 3x20x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 55.90 mm
Material: Steel Spring Rate: 0.03 N/mm Initial Tension (IT): 0.2 N Load at L1: 1.27 N
Part Number: ES-0300-0200-025-M (5 Pcs) Extension Springs - 3x20x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0200-025-M (5 Pcs) --- Extension Springs - 3x20x0.25 mm - Steel ES-0300-0200-025-M (5 Pcs) --- Extension Springs - 3x20x0.25 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 45.00 mm	Spring Rate 0.08 N/mm	Initial Tension (IT) 0.3 N
Material: Steel Load at L1: 2.25 N
Part Number: ES-0300-0200-03-M (5 Pcs) Extension Springs - 3x20x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 45.00 mm
Material: Steel Spring Rate: 0.08 N/mm Initial Tension (IT): 0.3 N Load at L1: 2.25 N
Part Number: ES-0300-0200-03-M (5 Pcs) Extension Springs - 3x20x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0200-03-M (5 Pcs) --- Extension Springs - 3x20x0.3 mm - Steel ES-0300-0200-03-M (5 Pcs) --- Extension Springs - 3x20x0.3 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.400 mm _{(0.016 in.)}	Max. Extension (L1) 29.00 mm	Spring Rate 0.39 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 4.41 N
Part Number: ES-0300-0200-04-M (5 Pcs) Extension Springs - 3x20x0.4 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.400 mm _{(0.016 in.)}	Max. Extension (L1) 29.00 mm
Material: Steel Spring Rate: 0.39 N/mm Initial Tension (IT): 0.9 N Load at L1: 4.41 N
Part Number: ES-0300-0200-04-M (5 Pcs) Extension Springs - 3x20x0.4 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0200-04-M (5 Pcs) --- Extension Springs - 3x20x0.4 mm - Steel ES-0300-0200-04-M (5 Pcs) --- Extension Springs - 3x20x0.4 mm - Steel Regular price $13.59 AUD Regular price Sale price $13.59 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 26.70 mm	Spring Rate 0.74 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 6.47 N
Part Number: ES-0300-0200-045-M (5 Pcs) Extension Springs - 3x20x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 20 mm _{(0.787 in.)}	Wire Diameter (d) 0.450 mm _{(0.018 in.)}	Max. Extension (L1) 26.70 mm
Material: Steel Spring Rate: 0.74 N/mm Initial Tension (IT): 1.6 N Load at L1: 6.47 N
Part Number: ES-0300-0200-045-M (5 Pcs) Extension Springs - 3x20x0.45 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0300-0200-045-M (5 Pcs) --- Extension Springs - 3x20x0.45 mm - Steel ES-0300-0200-045-M (5 Pcs) --- Extension Springs - 3x20x0.45 mm - Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 72.90 mm	Spring Rate 0.02 N/mm	Initial Tension (IT) 0.2 N
Material: Steel Load at L1: 1.27 N
Part Number: ES-0300-0250-025-M (50 Pcs) Extension Springs - 3x25x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.250 mm _{(0.01 in.)}	Max. Extension (L1) 72.90 mm
Material: Steel Spring Rate: 0.02 N/mm Initial Tension (IT): 0.2 N Load at L1: 1.27 N
Part Number: ES-0300-0250-025-M (50 Pcs) Extension Springs - 3x25x0.25 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50 View the product page first if you are unsure.
ES-0300-0250-025-M (50 Pcs) --- Extension Springs - 3x25x0.25 mm - Steel ES-0300-0250-025-M (50 Pcs) --- Extension Springs - 3x25x0.25 mm - Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 58.30 mm	Spring Rate 0.06 N/mm	Initial Tension (IT) 0.3 N
Material: Steel Load at L1: 2.25 N
Part Number: ES-0300-0250-03-M (50 Pcs) Extension Springs - 3x25x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.300 mm _{(0.012 in.)}	Max. Extension (L1) 58.30 mm
Material: Steel Spring Rate: 0.06 N/mm Initial Tension (IT): 0.3 N Load at L1: 2.25 N
Part Number: ES-0300-0250-03-M (50 Pcs) Extension Springs - 3x25x0.3 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50 View the product page first if you are unsure.
ES-0300-0250-03-M (50 Pcs) --- Extension Springs - 3x25x0.3 mm - Steel ES-0300-0250-03-M (50 Pcs) --- Extension Springs - 3x25x0.3 mm - Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.350 mm _{(0.014 in.)}	Max. Extension (L1) 44.50 mm	Spring Rate 0.14 N/mm	Initial Tension (IT) 0.7 N
Material: Steel Load at L1: 3.33 N
Part Number: ES-0300-0250-035-M (50 Pcs) Extension Springs - 3x25x0.35 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.350 mm _{(0.014 in.)}	Max. Extension (L1) 44.50 mm
Material: Steel Spring Rate: 0.14 N/mm Initial Tension (IT): 0.7 N Load at L1: 3.33 N
Part Number: ES-0300-0250-035-M (50 Pcs) Extension Springs - 3x25x0.35 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50 View the product page first if you are unsure.
ES-0300-0250-035-M (50 Pcs) --- Extension Springs - 3x25x0.35 mm - Steel ES-0300-0250-035-M (50 Pcs) --- Extension Springs - 3x25x0.35 mm - Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 31.80 mm	Spring Rate 0.98 N/mm	Initial Tension (IT) 2.2 N
Material: Steel Load at L1: 8.80 N
Part Number: ES-0300-0250-05-M (50 Pcs) Extension Springs - 3x25x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
OD (D0) 3.00 mm _{(0.118 in.)}	Overall Length (L0) 25 mm _{(0.984 in.)}	Wire Diameter (d) 0.500 mm _{(0.02 in.)}	Max. Extension (L1) 31.80 mm
Material: Steel Spring Rate: 0.98 N/mm Initial Tension (IT): 2.2 N Load at L1: 8.80 N
Part Number: ES-0300-0250-05-M (50 Pcs) Extension Springs - 3x25x0.5 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jun 16, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50 View the product page first if you are unsure.
ES-0300-0250-05-M (50 Pcs) --- Extension Springs - 3x25x0.5 mm - Steel ES-0300-0250-05-M (50 Pcs) --- Extension Springs - 3x25x0.5 mm - Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 12.7 mm _{(0.5 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 18.800 mm	Spring Rate 1.506 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0127-05-M Extension Springs - 3.05x12.7x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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) 12.7 mm _{(0.5 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 18.800 mm
Material: Steel Spring Rate: 1.506 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0127-05-M Extension Springs - 3.05x12.7x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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-0305-0127-05-M --- Extension Springs - 3.05x12.7x0.46 mm - Steel ES-0305-0127-05-M --- Extension Springs - 3.05x12.7x0.46 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) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 40.130 mm	Spring Rate 0.210 N/mm	Initial Tension (IT) 0.4 N
Material: Steel Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0191-04-M Extension Springs - 3.05x19.1x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 2025 Regular price $9.59 AUD Regular price Sale price $9.59 AUD Unit price per Each
OD (D0) 3.05 mm _{(0.12 in.)}	Overall Length (L0) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.36 mm _{(0.014 in.)}	Max. Extension (L1) 40.130 mm
Material: Steel Spring Rate: 0.210 N/mm Initial Tension (IT): 0.4 N Load at L1: 4.980 N End Type: Closed - Full Loop
Part Number: ES-0305-0191-04-M Extension Springs - 3.05x19.1x0.36 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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-0305-0191-04-M --- Extension Springs - 3.05x19.1x0.36 mm - Steel ES-0305-0191-04-M --- Extension Springs - 3.05x19.1x0.36 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) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 30.230 mm	Spring Rate 0.823 N/mm	Initial Tension (IT) 0.9 N
Material: Steel Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0191-05-M Extension Springs - 3.05x19.1x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.46 mm _{(0.018 in.)}	Max. Extension (L1) 30.230 mm
Material: Steel Spring Rate: 0.823 N/mm Initial Tension (IT): 0.9 N Load at L1: 9.790 N End Type: Closed - Full Loop
Part Number: ES-0305-0191-05-M Extension Springs - 3.05x19.1x0.46 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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-0305-0191-05-M --- Extension Springs - 3.05x19.1x0.46 mm - Steel ES-0305-0191-05-M --- Extension Springs - 3.05x19.1x0.46 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) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 25.400 mm	Spring Rate 2.450 N/mm	Initial Tension (IT) 1.6 N
Material: Steel Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0191-06-M Extension Springs - 3.05x19.1x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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) 19.1 mm _{(0.752 in.)}	Wire Diameter (d) 0.56 mm _{(0.022 in.)}	Max. Extension (L1) 25.400 mm
Material: Steel Spring Rate: 2.450 N/mm Initial Tension (IT): 1.6 N Load at L1: 17.300 N End Type: Closed - Full Loop
Part Number: ES-0305-0191-06-M Extension Springs - 3.05x19.1x0.56 mm - Steel Out of Stock \| Backorder Now \| Orders can be expected around Mon, Jul 07, 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-0305-0191-06-M --- Extension Springs - 3.05x19.1x0.56 mm - Steel ES-0305-0191-06-M --- Extension Springs - 3.05x19.1x0.56 mm - Steel Regular price $9.95 AUD Regular price Sale price $9.95 AUD Unit price per Out of stock! Backorder Now