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Available in standard spring steel and stainless steel. Minimum order value of £15+VAT. Shipping to the UK only.
Extension Spring Coil Lengths
Our extension spring coil lengths can be cut to your required length in spring steel or stainless steel.
Popular uses for our extension spring coil lengths are custom screen or storm doors, garage doors, trampolines, agricultural tools and machinery and much more. You can also choose from a variety of end fittings, including springs with loops, springs with turnable bolts and female thread fittings.
When measuring your extension spring you should account for the wire diameter, outside diameter and total body length.
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F0 = Initial force in Newtons
Spring steel: EN 10270-1-SM
Stainless steel: EN 10270-3-1.4310
1 kp = 9.80665 Newtons, 1 Newton = 0.10197 kp