Winmau Shaft Locking System

Winmau's Shaft Locking System consists of specialized silicone O-rings that prevent aluminum shafts from vibrating and loosening during play. It eliminates the hassle of constantly retightening your darts.

Tiny rubber O-rings are slid onto the shaft's thread using a supplied applicator tool. As you screw the shaft into the metal barrel, the ring is compressed, creating tension that stops the shaft from unscrewing.