Machinery Eye Bolt System of Measurement Metric Eyebolt Type With Shoulder Material Steel Finish Zinc Plated Thread Size M12-1.75 Thread Length 20.5 mm Shank Dia 12 mm Shank Length 20.5 mm Shoulder Dia 30mm Shoulder Length 10 mm Eye Inside Dia 30 mm Eye Outside Dia 54.0 mm Overall Length 74.5 mm Working Load Limit 339 lb Package Quantity 2