Diameter: 3/4"
Diameter 2: .128"
Length: 5-3/4"
Material: Spring Steel
Nominal Size: SRM42
Style: Loop End
Type: Extension Spring
WireDiameter: .130 WG
Hook-to-hookLength: 5-1/2"
# of Coils: 33
Box of 1.
Extension springs are wire coils designed to become longer under load. Their turns are normally touching in the unloaded position, and they have a hook, loop or some other means of attachment at each end.