... socket head cap screw we can make as your requriement! size , standard, and finishing! We supply the bolts, screws, nuts, rods ... dip galvanization, Dacromet and other kinds. The products are produced in conformity with DIN, ANSI, AS, BS, JIS, GB, ISO or ... nonstandard specifications or against customers' requirements, in grades of 4.8, 6.8, 8.8, 10.9 ...