Used for attaching chains or lift lines to beams for dead hanging or guide wires. Includes two 3/8" x 1" Grade 5 hex bolts with lock nuts, and a 1/4" round pin anchor shackle. 3/8" throat will grip flanges 4" to 8" 3/4" throat will grip flanges 5" to 9" Recommended Working Load: 350 lb