... screws, drilling screws, chipboard screws, drywall screws, furniture screws, rivets, anchors and many other hardware products made of carbon ... phosphate, 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' ...