3/8"-16 x 1-3/4" Zinc Finish SAE J429 Grade 5 Hex Flange Bolt / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.750 INCHES NOMINAL FASTENER LENGTH: 1.750 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD DIAMETER: 0.5625 INCHES NOMINAL NOMINAL THREAD DIAMETER: 0.375 INCHES THREAD QUANTITY PER INCH: 16 PART NAME ASSIGNED BY CONTROLLING AGENCY: 3/8-16X1-3/4GRADE5ZINCPLATEDHEXHEADFLANGEBOLT SPECIAL FEATURES: INTEGRATED WASHER COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL