Wing Nut Material Zinc Alloy Material Grade/Class Not Graded Finish Zinc Plated Lock Type Nylon Insert Wing Shape Square Thread Size 5/16 In.-24 Dimensional Standards ASME B18.17 Material Quality Standards ASME B18.6.9 Zamac Type 3 Material Fabrication Die Cast Maximum Wing Span 1 1/2 in Overall Height 0.719 in Base Diameter 9/16 in Body Height 21/64 in Flange Diameter Not Applicable Flanged No System of Measurement Inch Pack Size Small Pack Color Clear