1/2"-20 x 2" Grade 8 Yellow Zinc Finish Hex Cap Screw - Made in USA / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.25 INCHES NOMINAL FASTENER LENGTH: 1.94 INCHES MINIMUM AND 2.00 INCHES MAXIMUM HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM END ITEM IDENTIFICATION: 4940-01-591-0265 NOMINAL THREAD DIAMETER: 0.50 INCHES THREAD QUANTITY PER INCH: 20 SPECIAL FEATURES: MATERIAL IS GRADE 8 STEEL MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ASTM J429 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: ZINC OVERALL SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM F1941 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL THREAD SERIES DESIGNATOR: UNF