... 8,8.8,10.9,12.9 ETC3.Size: M4*8~M4*40 M5*8~M5* ... chipboard screws, drywall screws, furniture screws, rivets, anchors and many other hardware products made of carbon steel, alloy ... , copper plating, mechanical galvanization, hot dip galvanization, and Dacromet. Our products are produced in conformity with DIN ... , ANSI, AS, BS, JIS, GB and ISO standards, non-standard specifications or upon our customers ...