Our all-metal lock nuts are premium self-locking fasteners engineered for extreme working environments where nylon insert lock nuts cannot withstand high temperature, heavy vibration or chemical erosion. Manufactured to DIN 980, DIN 6927 and relevant international standards, we supply complete metric & imperial standard sizes, alongside fully customized metal lock nuts based on your drawings and samples.
Unlike nylon locking nuts, these all-metal lock nuts adopt a deformed thread metal locking structure, which forms durable interference friction with mating bolts after assembly. This reliable locking effect will not fail under high heat, aging or chemical corrosion, delivering long-lasting anti-loose performance for continuous vibrating equipment.
Available materials is carbon steel. Multiple surface treatments such as galvanization, black zinc plating, nickel plating and Dacromet coating are optional to enhance rust and wear resistance.
Widely used in automotive chassis, motor vehicles, construction machinery, wind power equipment, high-temperature pipeline systems, railway transit and heavy industrial facilities. As a professional factory, we support small trial orders, mass bulk production, OEM customization of thread, thickness, outer shape and packaging, with full dimensional inspection before delivery to guarantee consistent quality for global purchasers.