Hex Cap Screw - 5/16-18 x 2-1/4" - Carbon Steel - Zinc CR+3 - Gr 5 - PT - UNC - 100 Pk - BBI 847088

Hex head cap screws have a hexagonal head and are uniformally threaded for use with a corresponding threaded nut or into a threaded tapped hole. mainly used in repair or construction projects.