Wing Nut, Material Zinc Alloy, Material Grade/Class Not Graded, Finish Zinc Plated, Lock Type Nylon Insert, Wing Shape Square, Thread Size 1/4 In.-20, Dimensional Standards ASME B18.17, Material Quality Standards ASME B18.6.9, Zamac Type 3, Material Fabrication Die Cast, Maximum Wing Span 1 1/4 in, Overall Height 0.594 in, Base Diameter 7/16 in, Body Height 19/64 in, Flange Diameter Not Applicable, Flanged No, System of Measurement Inch, Pack Size Small Pack, Color Clear