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Collection: Springs - Extension - Music Wire

Springs (With Images)

Extension

Music Wire
Stainless Steel

895 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

OD (D0)	Overall Length (L0)	Wire Diameter (d)	Max. Extension (L1)	Spring Rate	Initial Tension (IT)	Indicative Image
4.00 mm	15 mm	0.350 mm	29.60 mm	0.14 N/mm	0.2 N
Material: Steel Load at L1: 2.26 N
Part Number: ES-0400-0150-035-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 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
4.00 mm	15 mm	0.350 mm	29.60 mm
Material: Steel Spring Rate: 0.14 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N
Part Number: ES-0400-0150-035-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0150-035-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.35 mm Steel ES-0400-0150-035-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.35 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	15 mm	0.400 mm	25.00 mm	0.26 N/mm	0.6 N
Material: Steel Load at L1: 3.24 N
Part Number: ES-0400-0150-04-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	15 mm	0.400 mm	25.00 mm
Material: Steel Spring Rate: 0.26 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N
Part Number: ES-0400-0150-04-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0150-04-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.4 mm Steel ES-0400-0150-04-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.4 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	15 mm	0.450 mm	22.50 mm	0.51 N/mm	1.0 N
Material: Steel Load at L1: 4.81 N
Part Number: ES-0400-0150-045-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	15 mm	0.450 mm	22.50 mm
Material: Steel Spring Rate: 0.51 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N
Part Number: ES-0400-0150-045-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0150-045-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.45 mm Steel ES-0400-0150-045-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.45 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	15 mm	0.500 mm	21.50 mm	0.78 N/mm	1.2 N
Material: Steel Load at L1: 6.37 N
Part Number: ES-0400-0150-05-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	15 mm	0.500 mm	21.50 mm
Material: Steel Spring Rate: 0.78 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N
Part Number: ES-0400-0150-05-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0150-05-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.5 mm Steel ES-0400-0150-05-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.5 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	15 mm	0.550 mm	19.50 mm	1.47 N/mm	1.9 N
Material: Steel Load at L1: 8.43 N
Part Number: ES-0400-0150-055-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	15 mm	0.550 mm	19.50 mm
Material: Steel Spring Rate: 1.47 N/mm Initial Tension (IT): 1.9 N Load at L1: 8.43 N
Part Number: ES-0400-0150-055-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0150-055-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.55 mm Steel ES-0400-0150-055-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.55 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	15 mm	0.600 mm	19.00 mm	2.16 N/mm	2.6 N
Material: Steel Load at L1: 11.10 N
Part Number: ES-0400-0150-06-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.6 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	15 mm	0.600 mm	19.00 mm
Material: Steel Spring Rate: 2.16 N/mm Initial Tension (IT): 2.6 N Load at L1: 11.10 N
Part Number: ES-0400-0150-06-M (5 Pcs) Extension Springs - 4 mm x 15 mm x 0.6 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0150-06-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.6 mm Steel ES-0400-0150-06-M (5 Pcs) --- Extension Springs - 4 mm x 15 mm x 0.6 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	20 mm	0.350 mm	44.10 mm	0.08 N/mm	0.2 N
Material: Steel Load at L1: 2.26 N
Part Number: ES-0400-0200-035-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	20 mm	0.350 mm	44.10 mm
Material: Steel Spring Rate: 0.08 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N
Part Number: ES-0400-0200-035-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0200-035-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.35 mm Steel ES-0400-0200-035-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.35 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	20 mm	0.400 mm	36.80 mm	0.16 N/mm	0.6 N
Material: Steel Load at L1: 3.24 N
Part Number: ES-0400-0200-04-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	20 mm	0.400 mm	36.80 mm
Material: Steel Spring Rate: 0.16 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N
Part Number: ES-0400-0200-04-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0200-04-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.4 mm Steel ES-0400-0200-04-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.4 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	20 mm	0.450 mm	32.20 mm	0.31 N/mm	1.0 N
Material: Steel Load at L1: 4.81 N
Part Number: ES-0400-0200-045-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	20 mm	0.450 mm	32.20 mm
Material: Steel Spring Rate: 0.31 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N
Part Number: ES-0400-0200-045-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0200-045-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.45 mm Steel ES-0400-0200-045-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.45 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	20 mm	0.500 mm	30.20 mm	0.49 N/mm	1.2 N
Material: Steel Load at L1: 6.37 N
Part Number: ES-0400-0200-05-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	20 mm	0.500 mm	30.20 mm
Material: Steel Spring Rate: 0.49 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N
Part Number: ES-0400-0200-05-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0200-05-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.5 mm Steel ES-0400-0200-05-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.5 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	20 mm	0.550 mm	27.10 mm	0.93 N/mm	1.9 N
Material: Steel Load at L1: 8.43 N
Part Number: ES-0400-0200-055-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	20 mm	0.550 mm	27.10 mm
Material: Steel Spring Rate: 0.93 N/mm Initial Tension (IT): 1.9 N Load at L1: 8.43 N
Part Number: ES-0400-0200-055-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0200-055-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.55 mm Steel ES-0400-0200-055-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.55 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	20 mm	0.600 mm	26.40 mm	1.37 N/mm	2.6 N
Material: Steel Load at L1: 11.10 N
Part Number: ES-0400-0200-06-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.6 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	20 mm	0.600 mm	26.40 mm
Material: Steel Spring Rate: 1.37 N/mm Initial Tension (IT): 2.6 N Load at L1: 11.10 N
Part Number: ES-0400-0200-06-M (5 Pcs) Extension Springs - 4 mm x 20 mm x 0.6 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0200-06-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.6 mm Steel ES-0400-0200-06-M (5 Pcs) --- Extension Springs - 4 mm x 20 mm x 0.6 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	25 mm	0.400 mm	47.50 mm	0.12 N/mm	0.6 N
Material: Steel Load at L1: 3.24 N
Part Number: ES-0400-0250-04-M (5 Pcs) Extension Springs - 4 mm x 25 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	25 mm	0.400 mm	47.50 mm
Material: Steel Spring Rate: 0.12 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N
Part Number: ES-0400-0250-04-M (5 Pcs) Extension Springs - 4 mm x 25 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0250-04-M (5 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.4 mm Steel ES-0400-0250-04-M (5 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.4 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	25 mm	0.450 mm	41.90 mm	0.23 N/mm	1.0 N
Material: Steel Load at L1: 4.81 N
Part Number: ES-0400-0250-045-M (50 Pcs) Extension Springs - 4 mm x 25 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
4.00 mm	25 mm	0.450 mm	41.90 mm
Material: Steel Spring Rate: 0.23 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N
Part Number: ES-0400-0250-045-M (50 Pcs) Extension Springs - 4 mm x 25 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 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-0400-0250-045-M (50 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.45 mm Steel ES-0400-0250-045-M (50 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.45 mm Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	25 mm	0.500 mm	38.90 mm	0.39 N/mm	1.2 N
Material: Steel Load at L1: 6.37 N
Part Number: ES-0400-0250-05-M (5 Pcs) Extension Springs - 4 mm x 25 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	25 mm	0.500 mm	38.90 mm
Material: Steel Spring Rate: 0.39 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N
Part Number: ES-0400-0250-05-M (5 Pcs) Extension Springs - 4 mm x 25 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0250-05-M (5 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.5 mm Steel ES-0400-0250-05-M (5 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.5 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	25 mm	0.550 mm	35.00 mm	0.66 N/mm	1.9 N
Material: Steel Load at L1: 8.43 N
Part Number: ES-0400-0250-055-M (5 Pcs) Extension Springs - 4 mm x 25 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	25 mm	0.550 mm	35.00 mm
Material: Steel Spring Rate: 0.66 N/mm Initial Tension (IT): 1.9 N Load at L1: 8.43 N
Part Number: ES-0400-0250-055-M (5 Pcs) Extension Springs - 4 mm x 25 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0250-055-M (5 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.55 mm Steel ES-0400-0250-055-M (5 Pcs) --- Extension Springs - 4 mm x 25 mm x 0.55 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	30 mm	0.350 mm	72.70 mm	0.05 N/mm	0.2 N
Material: Steel Load at L1: 2.26 N
Part Number: ES-0400-0300-035-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	30 mm	0.350 mm	72.70 mm
Material: Steel Spring Rate: 0.05 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N
Part Number: ES-0400-0300-035-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0300-035-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.35 mm Steel ES-0400-0300-035-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.35 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	30 mm	0.400 mm	58.40 mm	0.09 N/mm	0.6 N
Material: Steel Load at L1: 3.24 N
Part Number: ES-0400-0300-04-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	30 mm	0.400 mm	58.40 mm
Material: Steel Spring Rate: 0.09 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N
Part Number: ES-0400-0300-04-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0300-04-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.4 mm Steel ES-0400-0300-04-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.4 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	30 mm	0.450 mm	51.70 mm	0.18 N/mm	1.0 N
Material: Steel Load at L1: 4.81 N
Part Number: ES-0400-0300-045-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	30 mm	0.450 mm	51.70 mm
Material: Steel Spring Rate: 0.18 N/mm Initial Tension (IT): 1.0 N Load at L1: 4.81 N
Part Number: ES-0400-0300-045-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.45 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0300-045-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.45 mm Steel ES-0400-0300-045-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.45 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	30 mm	0.500 mm	47.50 mm	0.29 N/mm	1.2 N
Material: Steel Load at L1: 6.37 N
Part Number: ES-0400-0300-05-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	30 mm	0.500 mm	47.50 mm
Material: Steel Spring Rate: 0.29 N/mm Initial Tension (IT): 1.2 N Load at L1: 6.37 N
Part Number: ES-0400-0300-05-M (5 Pcs) Extension Springs - 4 mm x 30 mm x 0.5 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0300-05-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.5 mm Steel ES-0400-0300-05-M (5 Pcs) --- Extension Springs - 4 mm x 30 mm x 0.5 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	35 mm	0.400 mm	68.70 mm	0.08 N/mm	0.6 N
Material: Steel Load at L1: 3.24 N
Part Number: ES-0400-0350-04-M (5 Pcs) Extension Springs - 4 mm x 35 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	35 mm	0.400 mm	68.70 mm
Material: Steel Spring Rate: 0.08 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N
Part Number: ES-0400-0350-04-M (5 Pcs) Extension Springs - 4 mm x 35 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0350-04-M (5 Pcs) --- Extension Springs - 4 mm x 35 mm x 0.4 mm Steel ES-0400-0350-04-M (5 Pcs) --- Extension Springs - 4 mm x 35 mm x 0.4 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	35 mm	0.550 mm	50.20 mm	0.43 N/mm	1.9 N
Material: Steel Load at L1: 8.43 N
Part Number: ES-0400-0350-055-M (50 Pcs) Extension Springs - 4 mm x 35 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Per 50
4.00 mm	35 mm	0.550 mm	50.20 mm
Material: Steel Spring Rate: 0.43 N/mm Initial Tension (IT): 1.9 N Load at L1: 8.43 N
Part Number: ES-0400-0350-055-M (50 Pcs) Extension Springs - 4 mm x 35 mm x 0.55 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 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-0400-0350-055-M (50 Pcs) --- Extension Springs - 4 mm x 35 mm x 0.55 mm Steel ES-0400-0350-055-M (50 Pcs) --- Extension Springs - 4 mm x 35 mm x 0.55 mm Steel Regular price $130.14 AUD Regular price Sale price $130.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	40 mm	0.350 mm	100.30 mm	0.03 N/mm	0.2 N
Material: Steel Load at L1: 2.26 N
Part Number: ES-0400-0400-035-M (5 Pcs) Extension Springs - 4 mm x 40 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	40 mm	0.350 mm	100.30 mm
Material: Steel Spring Rate: 0.03 N/mm Initial Tension (IT): 0.2 N Load at L1: 2.26 N
Part Number: ES-0400-0400-035-M (5 Pcs) Extension Springs - 4 mm x 40 mm x 0.35 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0400-035-M (5 Pcs) --- Extension Springs - 4 mm x 40 mm x 0.35 mm Steel ES-0400-0400-035-M (5 Pcs) --- Extension Springs - 4 mm x 40 mm x 0.35 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now
4.00 mm	40 mm	0.400 mm	78.50 mm	0.07 N/mm	0.6 N
Material: Steel Load at L1: 3.24 N
Part Number: ES-0400-0400-04-M (5 Pcs) Extension Springs - 4 mm x 40 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5
4.00 mm	40 mm	0.400 mm	78.50 mm
Material: Steel Spring Rate: 0.07 N/mm Initial Tension (IT): 0.6 N Load at L1: 3.24 N
Part Number: ES-0400-0400-04-M (5 Pcs) Extension Springs - 4 mm x 40 mm x 0.4 mm Out of Stock \| Backorder Now \| Orders can be expected around Fri, Apr 04, 2025 Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Per 5 View the product page first if you are unsure.
ES-0400-0400-04-M (5 Pcs) --- Extension Springs - 4 mm x 40 mm x 0.4 mm Steel ES-0400-0400-04-M (5 Pcs) --- Extension Springs - 4 mm x 40 mm x 0.4 mm Steel Regular price $13.14 AUD Regular price Sale price $13.14 AUD Unit price per Out of stock! Backorder Now