For a more secure hold than standard quick-release pins, these pins lock in place until you push the button to release the spring-loaded retaining balls.

The shaft on these pins retracts into the head to hold thin sheets of material together. Pins lock in place until you push the button to release the spring-loaded retaining balls.

For extra security, these pins have a push button as well as a secondary lock. Two-step locking prevents accidental removal.