Includes Screw Stud And 3/4 Popular In Horse Trailer Living Quarters #30 Size Which Is 3/4 Used For Covering Mounting Screws On Interior Panels For Inside Use Only Set Of 12 Dura Snap Upholstery Buttons In Cowboy Cognac Fabric, Includes Mounting Screws And Studs, #30 Size Is 3/4" In Diameter.