Perfect for mounting a sling to your rifle White Spacers Included Built with Carbon Steel, works for wood or syntheic stocks 3pcs Sling Swivel Studs Wood Screw Studs Gun Sling Mounting Screws 1/2 3/4 7/8in Material:Carbon steel 1/2" for the forend 3/4" for the buttstock 7/8" machine screw and nut Package Include : 3 Pcs Swivel Screws |