7/16" x 5" x .051" WG Steel Extension Springs

Diameter: 7/16"
Diameter 2: .051"
Length: 5"
Material: Spring Steel
Nominal Size: SRM66
Type: Extension Spring
WireDiameter: .051 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.