Machinery Eye Bolt System of Measurement Metric Eyebolt Type Lift with Shoulder Material Steel Finish Plain Thread Size M18-2.50 Thread Length 51 mm Shank Dia 18 mm Shank Length 51 mm Shoulder Dia 28.45 to 31.75mm Shoulder Length 6.35 to 7.87mm Eye Inside Dia 38 mm Eye Outside Dia 71.5 mm Overall Length 139.7 mm Length from Ream Center - Working Load Limit 2 140 lb Includes -