Expansion Spring Various Sizes Tension Extension Expanding Extending Springs 

An expansion spring is available in different sizes for different applications. Please select the size and quantity you require.

The diameter of a spring is an external measurement (OD) unless otherwise stated. The length is measured from one end of the spring to the other in its natural state (not compressed or expanded), including the hooks of the expansion spring. The colour of the spring may differ from the photograph. Material is Stainles  steel unless otherwise stated. 

End Type:  Loop 

Material: 304 Stainles Steel 

Wire diameter: 1.2 mm

Outer diameter:  8mm 9mm 10mm 12mm

Length: 20mm-300mm 

Spring Dimensions. Wire Diameter * Outer Diameter * Length

Inner Diameter = Outer Diameter - 2 * Wire Diameter

[e.g. size 1.2*8*300mm means wire diameter of 1.2mm, outer diameter of 8mm, length of 300mm and inner diameter of 5.6mm].