7/8"-9 x 5-1/2" Grade 5 Zinc Finish Hex Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 2.000 INCHES NOMINAL FASTENER LENGTH: 3.500 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.531 INCHES MINIMUM AND 0.563 INCHES MAXIMUM WIDTH BETWEEN FLATS: 1.285 INCHES MINIMUM AND 1.312 INCHES MAXIMUM END ITEM IDENTIFICATION: COUGAR MRAP VEHICLE NOMINAL THREAD DIAMETER: 0.875 INCHES THREAD QUANTITY PER INCH: 9 SPECIAL FEATURES: 7/8IN-9 X 5-1/2 IN GRADE 5 ZINC PLATED HEX CAP SCREW MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: GRADE 5 PER SAE J429 ASSN STD ALL MATERIAL RESPONSES OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNC