Progress Mfg. Universal Coupler Lock

This universal coupler lock is designed with a 5/8″ hardened steel, reversible U-shaped shackle that features direct-engagement dual-locking pins (no springs) for maximum security. Anti-drill lock design is corrosion-resistant. Fits all 1-7/8″, 2″, and 2-5/16″ tongue-type trailer couplers. Includes two barrel-style keys. Limited lifetime warranty.