Metallics Finished hex nut in silver color, has 18-8 stainless steel construction for added strength and durability. The 7/16-Inch thick nut has 1/2-13 UNC thread and allows right thread direction. It has width of 3/4-Inch across flat and 0.840 to 0.866-Inch across corners. It supports a bolt size of 1/2-Inch. It is suitable for electrical, plumbing, heating and air conditioning industries. Hex nut meets ANSI/ASME B18.2.2 standards.