... ISO, ANSI, ASME, JIB etc.Material: Carbon Steel, Stainless steel, Aluminium, Brass. Coating: Plain, zinc plated, galvanized ... penetrate the concrete quickly and with less effort, and produces stronger and more accurate mechanical connections. ... and are widely used. These are made of high-quality carbon steel and are zinc-plated to provide strength and corrosion resistance. stainless steel carbon steel ...