Comparison : Item # HR6101, 1/4-20 X 1/2 SWIVEL HOIST RING, ALLOY STEEL, BLACK OXIDE
Item # HR6102, 5/16-18 X 1/4 SWIVEL HOIST RING, ALLOY STEEL, BLACK OXIDE
Item # HR6104, 5/16-18 X 9/16 SWIVEL HOIST RING, ALLOY STEEL, BLACK OXIDE
Item # HR6106, 3/8-16 X 9/16 SWIVEL HOIST RING, ALLOY STEEL, BLACK OXIDE
Item # HR6602, 1/2-13 X 1-1/16 SWIVEL HOIST RING, ALLOY STEEL, BLACK OXIDE