... lock mechanical structure. that uesd in quick location, quick release and fastening. Taking the advantages ... pins belong to the top fastening structure.standard of ball lock pin:Handle type: ... 14,16,20,22,25mmMaterial of handle:stainless steel,Ally steel.carton steelMaterial of shank:stainless steel,Ally steel.carton ... alignment and fastening of a sheet metal during a welding process. Ball lock ...