World's safest winch hook! The industry's first winch hook with an integrated shackle pin mount. Featuring industry first closed system shack mount hold machined into the body of the hook, safety latch retraction pocket resulting in a clear throat opening, integrated secondary safety latch locking feature-latch locking pin stored in the body of the UltraHook which can be removed and inserted in the hook tip, locking the latch into place. Two methods of use: conventional hook opening, or shackle mount. Shackle pin mount allows the safer practice of Closed System Winching. Finger grip feature promotes proper 'Hook Up' orientation. Double locking safety clasp- lock the safety clasp with the included clevis pin. Latch lock clevis pin stored conveniently in hook body. Integrated EPDM rubber pads for fairlead surface protection. Max opening deformation clearly laser engraved. Lightweight - Precision CNC machined 7000 series Military Grade Aluminum. No rope splicing required - double shear pin design accepts rope/cable eyes. Designed for both steel cables and synthetic winch ropes. The first winch hook that can be stored against your fairlead protecting either your hawse or roller style fairlead from a metal to metal connection. Shackle pin mounting hole accepts shackle pins (.875" diameter). For rope and cable diameters up to 3/8". Available in the Military Specification Hard Anodizing (Mil-A-8625 F Type III) Gray. 5/8" diameter 6AI-4V grade V titanium double shear pin. Max Rated Load: 16,000 pounds. Ultimate Strength Hook Throat Opening: 31,000 pounds. Ultimate Strength Shackle Pin Mount: 48,000 pounds. Weight: 32oz. Made in the USA. Patent Pending. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.