CM Anchor Shackle, Super Strong, 10 ton, 1 in, 118 in Pin dia, Screw Pin, 334 in Inner Length, 2312 in Inner Width, 1688 in Opening, 258 in Eye Outer Size, Carbon Steel Body, Alloy Steel Pin, GalvanizedScrew Pin AnchorChain Shackles Allow Quick and Easy Removal of The Screw Pin and Can Be Useful in Applications Where The Shackle is Frequently Removed, But Not So Much in Applications Where The Pin is Subject to Torque or Twisting