Routing Eye Bolt, System of Measurement Inch, Eyebolt Type Turned Wire, Finish Plain, Thread Size 1/2 In.-13, Thread Length 2 1/2 in, Shank Dia. 1/2 in, Shank Length 4 in, Eye Inside Dia. 1 in, Eye Outside Dia. 1 7/8 in, Overall Length 6.0 in, Includes Hex Nut