3/8"-16 x 8-1/2" ASTM A307 Grade A Zinc Finish Hex Bolt / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.250 INCHES NOMINAL FASTENER LENGTH: 8.500 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 0.250 INCHES NOMINAL WIDTH BETWEEN FLATS: 0.563 INCHES NOMINAL END ITEM IDENTIFICATION: M-ATV NOMINAL THREAD DIAMETER: 0.380 INCHES THREAD QUANTITY PER INCH: 16 SPECIAL FEATURES: DRAWING SUBJECT TO EXPORT ADMINISTRATION REGULATIONS MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: SAE J429 ASSN STD ALL MATERIAL RESPONSES OVERALL PROPRIETARY CHARACTERISTICS: NPAC THREAD SERIES DESIGNATOR: UNC