u-bolts 2. raw material : carbon steel, stainless steel, brass. 3.Finished:plain , zinc plated, HDG,... u-bolts2. raw material : carbon steel, stainless steel, brass. 3.Finished:plain , zinc plated, HDG,4.Standard:DIN, ANSI /ASME,BS, non-standard 5.Diameter,length:3mm-42mm, 50mm - 650mm;1/8" -1 1/2", 2"-24". U-02 metal U-bolts