1.auto bolts 2.screw,fasteners 3.passed ISO 9001,ISO Ts 16949 4.color,diameter,length according to request 1.auto bolts2.screw,fasteners3.passed ISO 9001,ISO Ts 169494.color,diameter,length according to requestauto bolts( screw,fasteners) We supply the auto bolts and screws and other bolts.The material can be carbon steel and some material met the client's demands.