The metric HHIP U-bar safety swivel ring is 200 percent proofload tested and certified with traceable serial number. Rated at 100% from 0 to 90 degrees. Fatigue tested to 20,000 cycles at 1.5 times rated load. Meets or exceeds ASME B30.26 requirements. Specification: 400lbs rated load; thread size M8x1.25; size A is 11mm; size C is 18mm; size D is 10mm; size E is 13mm; size B is 32mm; size F 68mm; size G is 47mm; size H 25 mm; mm; mm; mm; Hmoment Ft/#: 9; Weight: 0.4 lbs.