Manufactured from high-strength medium-carbon steel or alloy steel, these nuts utilize precision cold-heading and slotting processes. By inserting a cotter pin through the nut slots and the bolt hole, a mandatory mechanical lock is formed, completely eliminating nut rotation caused by severe vibration or high/low-temperature cycles. They offer exceptional connection reliability and support repeated disassembly and reuse with extremely stable performance.
Extensively utilized in rail transit bogies, large generator sets, heavy-duty commercial vehicle wheel hubs, and mining vibration equipment. They are particularly suited for safety-critical load-bearing components where extreme redundancy is required and loosening-induced downtime is unacceptable, such as avionic structures, oil drilling tools, and marine propulsion systems.
