Hex Head Cap Screw, Standard Head Type, High Strength, Grade 8, Comparable To Property Class 10.9, Alloy Steel, Plain Finish, Thread Size 5/8-11, Thread Type UNC, Length under Head 4 In, Thread Length 1-1/2 In, Head Height 15/32 In, Head Width 15/16 In, Thread Style Partially Threaded, Thread Direction Right Hand, Class 2A, Proof Load (PSI) 120, 000, Tensile Strength (PSI) 180, 000, Rockwell Hardness HRC 33-39, Meets/Exceeds SAE J429 Grade 8 and ASME B18.2.1, Package Quantity 5 RestrictionsNote: Thread lengths for partially threaded screws are minimums. Bulk quantities and plain finish for some sizes are available on DrillSpot.com . Grade 8 Plain Hex Head Cap ScrewsGrade 8 is comparable to metric 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
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