... strength pins, the quick release function of ball lock structure and the high-precision function of alignment pins ... quick release pins,ball lock pins,self lock pins,positive lock pins,detent pins,lock pinsstandard of ball lock pin:Handle type: ... 1/2 inch~6inchDiameter of shank:3/16,1/4,5/16,3/8,7/16,1/2,9 ... /16,5/8,3/4,7/8,1(inch) or 5, ... Ally steel.carton steelBall qty:1,2,3,4 Release Pin BPI4-NM1 ...