hexagon socket head cap screw the standard one we have stock ... 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 hardware products, made of ... .9, 12.9, A2-50, A2-70 and A4-70etc hexagon socket head cap screw