... as b Hanger Bolt With Wood & Metric ThreadOur fasteners are made of carbon steel, alloy and stainless steel, aluminum, brass, and other special materials ... . Our production is in compliance with ISO, DIN, BS, ANSI and JIS standards...Hanger bolts Size from 1 / 4-20 ... : Carbon Steel, 18-8 SS Surface Treatement: Plain... hanger bolt with wood & metric thread bolt