7/16 x .048 x 3-3/4 x.048 WG Steel Extension Springs (6 pcs.)

Diameter: 7/16 Diameter 2: .048 Length: 3-3/4 Material: Spring Steel Nominal Size: SRM61 Type: Extension Spring WireDiameter: .048 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.