Tower offers replacement screws for older model paddle clasps and collars. These screws are compatible with both fiberglass and carbon fiber paddles. The older paddles have a removable collar and clasp, while the newer 3-piece fiberglass paddles have an integrated clasp in the paddle base. If you own an older model paddle, you will need two screws to secure the collar and clasp, while the newer clasp only requires a single screw. Keep your paddle in good working order with these replacement screws.