thread bars din975 name:thread bars standard:din975 surface:zinc plated , black , plain , H.G.D grade: ... screws, drywall screws, furniture screws, rivets, anchors and many other hardware products made of carbon steel, alloy & stainless steel, aluminum, brass ... with DIN, ANSI, AS, BS, JIS, GB and ISO standards, non-standard specifications or upon our customers' special requirements, in grades 4 ...