Factor 55 features Industry's first Closed System Shackle Mount hole 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 to the hook tip, locking the latch into place. EPDM rubber pads for fairlead protection, titanium double shear pin, and a finger grip feature that promotes proper “Hook Up” orientation. 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.