1/2" x .051" x 5-1/4" Steel Extension Springs (6 pcs.)

Diameter: 1/2"
Diameter 2: .051"
Length: 5-1/4"
Material: Spring Steel
Nominal Size: SRM110
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.