V BOLT/U BOLT/J BOLT Material: Carbon steel, stainless steel, ... steel, aluminum, brass and copper Size:M6-M8*20mm-400mm V BOLT/U BOLT/J BOLT Material:Carbon steel - Q915,Q215 ... , 4#--2 1/4" Length:General (6mm-1000mm, 3/8"--40" ), we also can produce according to your requirement Coating:Plain ...