Spherical Flange Nut, 1/4-20, Steel, Grade 2, Black Oxide, 1/2 in Hex Wd
-20, Fastener Thread Type UNC (Coarse), Width Across Flats 1/2 In..Spherical Flange Nut, Nut Style Spherical Flange Nut, System of Measurement Inch, Basic Material Steel, Material Grade Grade 2, Fastener Finish Black Oxide, Fastener Thread Direction Right Hand, Dia.