5/16" x 1.500" OD Low Carbon Zinc Finish Steel Fender Washer / CROSS-SECTIONAL SHAPE STYLE: 1 RECTANGULAR HOLE DIAMETER: 0.344 INCHES NOMINAL PERIPHERAL SHAPE STYLE: 1 ROUND CENTER HOLE SHAPE STYLE: 1 ROUND THICKNESS: 0.062 INCHES NOMINAL OVERALL DIAMETER: 1.500 INCHES NOMINAL END ITEM IDENTIFICATION: TOOLS PART NAME ASSIGNED BY CONTROLLING AGENCY: FENDER WASHER MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL