Machinery Eye Bolt System of Measurement Inch Eyebolt Type With Shoulder Material Steel Finish Zinc Plated Thread Size 1/2 In.-13 Thread Length 3 in Shank Dia 1/2 in Shank Length 3 in Shoulder Dia 0.88 in to 0.94 in Shoulder Length 7/32 in Eye Inside Dia 1 3/16 in Eye Outside Dia 2 1/16 in Overall Length 5 5/16 in Working Load Limit 2 400 lb