Made of premium 304 stainless steel, strong anti-rust, anti-oxidation performance. Works well in humid, outdoor and electrical cabinet environments with long service life.

Surrounding star-shaped serrated teeth increase friction between nut and mounting surface. Effectively prevent loose from vibration, perfect for electrical equipment, chassis, cabinet assembly.

Uniform tapping thread without burrs, fits standard machine screws perfectly. Smooth screwing without slipping, tight and stable connection after fastening.

Combines hex nut and lock washer into one integrated part, saves separate washer installation steps, greatly improves assembly efficiency for mass production.

Full specs M3/M4/M5/M6/M8/M10 widely used in electronics, metal cabinet, power distribution box, home appliances, metal frames and machinery assembly.

Stable stock, low MOQ, competitive bulk price. Support custom size, surface finish, packaging for distributors, electronics manufacturers and hardware wholesalers.