RoyceMart 5/16-18 x 3" (10 Pack) Hex Socket Button Head Cap Screws Bolts, Allen Socket Drive, 304 Stainless Steel 18-8, Bright Finish, Full Machine UNC Threads

Thread Size: 5/16- 18; Screw Length: 3" ( Not including the height of the head), Allen Hex Drive Size: 3/16"; Thread Type: 18 TPI Coarse Thread (UNC);, IDEAL USE in confined areas where the head needs to be flush or below the surface., Material: High Quality 18-8 Stainless Steel, great strength and good corrosion resistance to make fasteners last!, Head Diameter: 0.54 inch; Head height: 0.166 inch (Approximately)