3/8"-16 x 1-1/4" Zinc Finish SAE J429 Grade 8 Hex Serrated Flange Bolt / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 1.25 INCHES NOMINAL HEAD STYLE: C1 HEXAGON END ITEM IDENTIFICATION: 4320016177587 NOMINAL THREAD DIAMETER: 0.375 INCHES THREAD QUANTITY PER INCH: 16 PART NAME ASSIGNED BY CONTROLLING AGENCY: HEX HEAD SERRATED FLANGE SCREW MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL