... make as your requirement delivery is fast and cheap For the hexagon socket head cap screw we can make as your requriement ... ! size , standard, and finishing! We supply the bolts, screws, nuts, rods, studs, washers and many other ... phosphate, mechanical galvanization, hot dip galvanization, Dacromet and other kinds. The products are produced in conformity with DIN, ANSI, AS, BS ...