hexagon socket head cap screw the standard one we have stock can ... For the hexagon socket head cap screw we can make as your requriement! size , standard, and finishing!We supply the bolts, screws, nuts ... , Dacromet and other kinds. The products are produced in conformity with DIN, ANSI, AS, BS, JIS, GB, ISO or nonstandard specifications ... 9, 12.9, A2-50, A2-70 and A4-70etc hexagon socket head cap screw