This slotted castle nut, also called crown nut, is made of carbon steel with color zinc plating for anti-rust. The top slotted design allows installation of cotter pins, which fixes the nut reliably and stops rotation under heavy vibration. It is widely applied on vehicle axles, steering parts, suspension and other dynamic load fastening positions. Multiple thread sizes available.
Features:
-Carbon steel base, color zinc plated, corrosion resistant
-Slotted crown structure, match with cotter pin
-Excellent anti-loosening performance for vibrating parts
-High mechanical strength for heavy load
-Common for axle, steering, suspension assembly
-Various thread specifications for selection
Contact us for size specifications and bulk quotation.
slotted nut, crown nut, castle nut with cotter pin, auto axle nut
FAQ
Q: What is a castle nut used for?
A: It works with a cotter pin to lock the nut and prevent it from spinning loose on vibrating or high-load assemblies such as axles.









