SQMSNI20250-100BX Square Nut, Material Grade/Class Not Graded, Material Steel, Finish Zinc Plated, Thread Size 1/4 In.-20, Square Height 3/16 in, Square Width 7/16 in, System of Measurement Inch, Thread Direction Right Hand, Pack Size Small Pack, Rockwell Hardness B68 - C32, Thread Type Coarse, Package Quantity 100