3/8" x 5-13/16" x .051" WG Steel Extension Springs SPRE-331 (6 pcs.)

Diameter: 3/8"
Diameter 2: .051"
Length: 5-13/16"
Material: Spring Steel
Nominal Size: SRM65
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.