Factor 55 ProLink Shackle Mount w Titanium Pin & Rubber Guard 16,000 Lbs Orange FREELANDER AIR FILTER underwater Kit:Rear Door LH underwater Part Number: 1013LR4V8EBCFULLKT The advantages of winching with a screw pin shackle over a conventional winch hook are many : Screw pin shackles are up to 5X stronger than conventional winch hooks Conventional hooks are too small to safely fit both ends of a recovery strap Recover straps cannot slip out of a shackle like they can with hooks Hook safety latches are not rated for loads and can tear recovery straps Conventional hook surfaces add higher stresses to recovery strap fibers and Made in USA Patent Pending Stress analyzed using COSMOS FEA and destructively tested for confirmation Billet construction precision machined from 6061 T6 Kaiser Aluminum round bar 16