... Desp:Ball Head with Washers,Holes on the head Dia:3/8",5/16" Finish:WZP,YZP Steel Bed Bolt with ... and WasherDesp:Ball Head with Washers,Holes on the headDia:3/8",5/16"Finish:WZP,YZP1) Square bolt2) Material:Carbon ... -56mm, 4#--2 1/4"4) Length:General (6mm-1000mm, 3/8"--40" ), we also can produce according toyour requirement5) Coating ...