3/4 in, Eye Outside Dia..Machinery Eye Bolt Without Shoulder, 1/4"-20, 1 in Shank, 3/4 in ID, Steel, Zinc Plated 1 3/16 in, Overall Length 2 1/16 in, Length from Ream Center -, Working Load Limit 500 lb, Includes - 1/4 in, Shank Length 1 in, Shoulder Length -, Eye Inside Dia.