... 8,6.8,8.8,10.9,12.9 ETC3.Size: M4*8~M4*40 M5*8~M5*40 M6 ... galvanization, hot dip galvanization, and Dacromet. Our products are produced in conformity with DIN, ANSI, AS, BS, JIS, GB ... , non-standard specifications or upon our customers' special requirements, in grades 4.8, 6.8, 8.8, 10.9, ... develop our international market shares. If you are interested in cooperating with us or our products, please don't ...