... the top fastening structure.standard of ball lock pin:Handle type: T style,L style,Marine style,Button style,Ring styleGrip length of shank:10mm~150mm or ... 1/2 inch~6inchDiameter of shank:3/16 ... 8,1(inch) or 5,6,8,10,12,14,16,20,22,25mmMaterial of handle:stainless steel,Ally steel.carton steelMaterial ...