3/8"-16 x 1" Zinc Finish Grade 8.2 Hex Serrated Flange Bolt / THREAD CLASS: 2A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.00 INCHES NOMINAL FASTENER LENGTH: 1.000 INCHES NOMINAL HEAD STYLE: C117 CHAMFER FLANGE HEAD HEIGHT: 0.307 INCHES MINIMUM AND 0.331 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.5625 INCHES NOMINAL EXTENDED WASHER DIAMETER: 0.77 INCHES NOMINAL END ITEM IDENTIFICATION: MRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS NOMINAL THREAD DIAMETER: 0.375 INCHES THREAD QUANTITY PER INCH: 16 PART NAME ASSIGNED BY CONTROLLING AGENCY: BOLT, HEX FLANGED 3/8-16 X 1 MATERIAL: STEEL OVERALL PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: UNC