lock nut 1.Material:Carbon steel,stainless steel,Aluminum 2.size:M2-M36 3.high quality and cheap price 4.Systematic QC Carbon steel,stainless steel,Aluminum,Brass Connecting nut1.Material:Carbon steel,stainless steel,Aluminum,Brass and etc as per your need.2.Surface Finish:black oxide, black zinc, passivated, phosphated, guild, nickel plated, chromnium and etc.3. Size: Normal size from M2-M36 or ...