1.quality weld nut 2. steel/stainless steel weld nut 3.All surface Weld NutWeld nut made of steel, stainless steel, brass.Standard: DIN, ASME/ANSI, JIS, AIS standardDimension according to standard or customs designSize: M4, M5, M6, M8, M10, M12Inch size is also availableDifferent surface finish is available