Machinery Eye Bolt System of Measurement Inch Eyebolt Type Without Shoulder Material 304 Stainless Steel Finish Plain Thread Size 5/16 In.-18 Thread Length 3 in Shank Dia 5/16 in Shank Length 6 in Shoulder Length - Eye Inside Dia 5/8 in Eye Outside Dia 1 1/4 in Overall Length 7 9/32 in Length from Ream Center - Working Load Limit 800 lb Includes Nut