CHICAGO HARDWARE BOLT TYPE ANCHOR SHACKLES, 1-1/2 TON, 7/16", GalvanizedCapacity: (1 3 Ton up to 17 Ton)Loads are based on a safety factor of 6: 1, except (**) which is 5: 1. All Shackles: Size, working load limit, and trademark are permanently marked on all shackles. All shackles and pins are heat treated. When tested all shackles are pulled at a uniform rate of speed in a direct tension. All types of shackles are available in a self colored or hot galvanized finish. NOTE: SOME PRODUCTS MAY BE 10 12 WEEK LEAD TIME FROM