V BOLT/U BOLT/J BOLT Material: Carbon steel, stainless steel, alloy steel, aluminum, brass and copper Size:M6-M8*20mm-400mm V BOLT/U BOLT/J BOLT Material:Carbon steel - Q915,Q215 ... ,Q235,1008,SWRCH8A, SWRM6,SWROH35K,35ACR,40ACR,45#,40cr,10B21,10B33,10B38,B7,stainless steel ...