7/16"-20, THK=3/8", A/F=11/16" Slotted Hex Nuts, Finished Nut Pattern, Steel, Zinc Plated

Also known as castellated nuts.Designed to use a cotter pin that fits through the slots to prevent the nut from loosening.Diameter (Nominal): 7/16"Thread Pitch: 20Thickness (Nominal): 3/8"Across Flats (Basic): 11/16"Product Class: Internally Threaded...