M5 M8 Stainless Steel Dome Cap Nut SS 304 SS316 A2 acron nuts Silver plain finishing

Cap nuts are used similarly to hexagonal nuts but feature a design that prevents easy sliding. They require specialized tools for tightening, including live spanners, dull spanners, dual-purpose spanners (open part), or special square-hole socket spanners.

• Rough and simple component fastening
• Vehicle components (cars, tricycles, electric vehicles) including tires and axles
• Road light frame bases and outdoor mechanical equipment exposed to weather elements

Classified by nominal thickness into Type I, Type II, and thin varieties. Type I nuts (grades A, B, C) are used based on surface roughness and precision requirements, while Type II offers greater thickness for frequent assembly/disassembly applications.

Welded nuts that provide exceptional fastening security, widely used in construction, transportation, and various mechanical applications where loosening prevention is critical.

Feature integrated washers with non-slip tooth patterns for enhanced contact surface and superior anti-loosening performance, ideal for pipe connections and high-pressure/temperature environments.

Used with cotter pins to prevent rotation, particularly in vehicle axles and mechanical assemblies where vibration resistance is essential.

• Exceptional corrosion resistance for harsh environments
• High-temperature oxidation resistance maintains surface integrity
• Superior mechanical strength and hardness
• Non-toxic, hygienic properties ideal for food and medical applications