3/8"-16x1-3/4" SAE J429 Grade 5 Zinc Finish Steel w/ 1/16" Hole Drilled Head Hex Cap Screw / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.000 INCHES NOMINAL FASTENER LENGTH: 1.750 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM HOLE DIAMETER: 0.061 INCHES MINIMUM AND 0.069 INCHES MAXIMUM END ITEM IDENTIFICATION: 2355-01-567-4930 NOMINAL THREAD DIAMETER: 0.375 INCHES HOLE QUANTITY: 1 HOLE TYPE: DRILLED THREAD QUANTITY PER INCH: 16 HOLE CONFIGURATION STYLE: E6 HEXAGON FLATS MATERIAL: STEEL OVERALL THREAD SERIES DESIGNATOR: UNC