These heavy-duty ball-locking pins provide locking in quick change applications where there is frequent insertion and removal of a fastener. They feature excellent clamping strength up to 450 lbs. These fasteners are designed to be used with the ball-locking receptacles referenced on the table. The fastener pin is mounted to the fixture and the receptacle is mounted to the base. When the knob is rotated, the balls on the pin expand and lock the fixture in place. These fasteners will not release until the knob is turned to “OFF”, allowing the balls to retract into the shank so that the pin can be removed from the receptacle without the use of tools. The end of the pin is tapered to make alignment of the pin easy. They can be used with locating pins to provide highly accurate positioning.

The body is made from electroless nickel-plated 4140 steel. The wedge is made from nickel-plated 4135 steel, quenched and tempered. The knob is made from 304 stainless steel. The balls are made from 440C stainless steel, quenched and tempered.