Hex Head Cap Screw, Head Type Standard, Type High Strength, Grade 8, Comparable To Property Class 10.9, Steel, Finish Armor Coat, Thread Size 3/4-10, Thread Type UNC, Length under Head 2 In, Thread Length 2 In, Head Height 9/16 In, Head Width 1 1/4 In, Thread Style Fully Threaded, Thread Direction Right Hand, Class 2A, Proof Load 120, 000 PSI, Tensile Strength 150, 000 PSI, Rockwell Hardness C33-C39, Meets/Exceeds SAE J429 and ASME B18.2.1, Package Quantity 5 Armor Coat Grade 8 Hex Head Cap ScrewsProtect fasteners from rust. Can withstand 1000-hr. of ASTM B-117 salt spray. Grade 8 is comparable to Property Class 10.9.Meet SAE J429/ASME B18.2.1 standards.Tensile strength: 150,000 psi Rockwell hardness: C33 to C39 Thread class: 2A, right-hand threads Use with Grade 8 nuts