1/2" x .081" x 5-7/16" Steel Extension Springs

Diameter: 1/2"
Diameter 2: .081"
Length: 5-7/16"
Material: Spring Steel
Nominal Size: SRM105
Type: Extension Spring
WireDiameter: .081 WG

Box of 6.

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.