0.56 in to 0.62 in, Shoulder Length 5/32 in, Eye Inside Dia.
Machinery Eye Bolt With Shoulder, 5/16"-18, 2-1/4 in Shank, 5/8 in ID, Steel, Galvanized Machinery Eye Bolt, System of Measurement Inch, Eyebolt Type With Shoulder, Material Steel, Finish Hot Dipped Galvanized, Thread Size 5/16 In. 5/8 in, Eye Outside Dia..