7/8X5-1/2UNFGR5

Hex Head Cap Screw are used to secure an object within or against another object. Bare Metal Fasteners have no corrosion resistant qualities and are a good choice for indoor and industrial applications where corrosion is not of concern. Grade 5 Fasteners are heat treated and are stronger than grade 2 Fasteners. They are used by contractors, designers, OEMs, automotive repair and maintenance staff for critical joints and high stress applications. Tensile Strength: up to 1" - 120,000 p.s.i. (min). Three radial bars Head marking. Made from medium carbon steel.