5/8"-11 x 2-3/4" ASTM A574 Hex Drive Black Oxide Finish Alloy Steel Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 3.375 INCHES NOMINAL END ITEM IDENTIFICATION: 2320-01-465-2174 NOMINAL THREAD DIAMETER: 2.000 INCHES THREAD QUANTITY PER INCH: 11 MINIMUM TENSILE STRENGTH: 160000 POUNDS PER SQUARE INCH SPECIAL FEATURES: MATLALLOY STEEL,FINISH BLACK OXIDE SURFACE TREATMENT: OXIDE OVERALL THREAD SERIES DESIGNATOR: UNC