Image represents Line not exact item Not all fasteners are Ful Thread Questions? Contact us directly. Hex Bolt Hex Head Cap Screw Body Diameter: 0.5545 - 0.5625 Inch, Diameter: 9/16 Inch, Finish: Yellow Zinc, Grade: Grade 8, Head Height Max: 23/64 Inch, Head Style: Hex, Head Type: Hex, Item: Cap Screw, Length: 5-1/2 Inch, Material: Steel, Material Standard: SAE J429, Measurement: Inch, Origin: Imported, Proof Load: 120000 psi, Specification: ASME B18.2.1, Tensile Strength : 150000 psi, Thread Length: 1-3/8 Inch, Thread Type: Coarse, Threads Per Inch: 12, Type: Partial Threaded, Width Across Corner: 0.910 - 0.938 Inch, Width Across Flat: 13/16 Inch