1-1/4"-7, THK=1-7/32", A/F=2" Slotted Heavy Hex Nuts, Hot Formed, Steel, Plain

Also known as castellated nuts.Designed to use a cotter pin that fits through the slots to prevent the nut from loosening.Diameter (Nominal): 1-1/4"Thread Pitch: 7Thickness (Nominal): 1-7/32"Across Flats (Basic): 2"Product Class: Internally Threaded...