Wing Nut, Material Steel, Material Grade/Class Grade 2, Finish Zinc-Plated, Thread Size 1/4 In. -20, Dimensional Standards Not Applicable, Maximum Wing Span 1 5/16 in, Overall Height 0.688 in, Base Diameter 9/16 in, System of Measurement Inch, Pack Size Small Pack, Rockwell Hardness HB 82-92, Package Quantity 10. This item has been restricted from sale in the following state (s): []