Hex Standoff Thread Size 1/4 In.-20 Standoff Thread Gender Female-Female Overall Length 1 in Body Length 1 in Thread Length 1 in Body Thread Length 1 in Hex Width 1/2 in Square Size Not Applicable Outside Diameter 1/2 in Shape Hex Material Brass Finish Zinc Plated Pack Size Small Pack System of Measurement Inch Color Silver Material Quality Standards ASTM B16 Hex Width Tolerance +/-0.006 in