3/4"-16 x 4" Grade 8 Yellow Zinc Finish Hex Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.750 INCHES NOMINAL FASTENER LENGTH: 4.000 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM WIDTH BETWEEN FLATS: 1.125 INCHES NOMINAL END ITEM IDENTIFICATION: FPII COUGAR NOMINAL THREAD DIAMETER: 0.750 INCHES THREAD QUANTITY PER INCH: 16 MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 GRADE 8 ASSN STD ALL MATERIAL RESPONSES OVERALL SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNF