Safeland Ind. Galvanized Steel Screw Pin Anchor Shackles - Choose 1/4" or 3/16" Premium steel hardware suitable for superior longevity - Lasts use after use Made of drop forged steel with alloy steel pin and hot dipped galvanized finishing Threaded shackle pin with key hole for tightening/loosening Choose from 3/16" & 1/4" sizes - Also available in stainless steel and numerous other sizes Shackle dimensions of 3/16" size: Nominal Shackle Size: 3/16", Inside Length: 9/10", Inside Width at Pin: 1/2", Working Load Limit: 1/3 Ton (666.667 LBS) Weight: 0.9 oz; Shackle dimensions of 1/4" size: Nominal Shackle Size: 1/4", Inside Length: 1-1/5", Inside Width at Pin: 3/5", Working Load Limit: 1/2 Ton (1000 LBS) Weight: 1.2 oz