<p>Hex Head Cap Screw, System of Measurement Inch, Head Type Hex, Dia./Thread Size 5/8 In.-18, Thread Type UNF (Fine), Fastener Length 1 In., Min. Thread Length 1-1/2 In., Basic Material Steel, Screw Grade/Class Grade 5, Fastener Finish Zinc Plated, Thread Style Fully Threaded, Thread Direction Right Hand, Head Height 25/64 In., Head Width 15/16 In., Proof Load 74,000 to 85,000 psi, Screw Industry Standards ASME B18.2.1, Package Quantity 140</p> <p><br /><b>Features</b></p> <ul> <li>Item: Hex Head Cap Screw</li> <li>Head Type: Hex</li> <li>Tensile Strength: 105,000 to 120,000 psi</li> <li>Thread Style: Fully Threaded</li> <li>Thread Type: UNF (Fine)</li> <li>Rockwell Hardness: C19 to C30</li> <li>Thread Direction: Right Hand</li> <li>Head Height: 25/64&quot;</li> <li>Head Width: 15/16&quot;</li> <li>Proof Load: 74,000 to 85,000 psi</li> <li>System of Measurement: Inch</li> <li>Basic Material: Steel</li> <li>Dia./Thread Size: 5/8&quot;-18</li> <li>Fastener Finish: Zinc Plated</li> <li>Screw Grade/Class: Grade 5</li> <li>Screw Industry Standards: ASME B18.2.1</li> <li>Fastener Length: 1&quot;</li> </ul> <p></p>