Common nut types include hexagonal nuts, flange nuts, slotted nuts, wing nuts, cap nuts, and locknuts. Each type, due to its different structural design, is suitable for specific connection needs and working environments.
Hexagonal Nuts
Characteristics: The most common standard nut. Its hexagonal structure makes it easy to tighten with a wrench. It is simple to manufacture and has low cost.
Applications: Widely used in general fastening connections in construction, machinery, automotive, and other fields.
Variations:
Thin Hexagonal Nuts: Lighter thickness, often used as locking nuts.
Thick Hexagonal Nuts: High strength, suitable for frequent disassembly.
Flange Nuts (Washer Nuts)
Characteristics: Features an integrated flange at the bottom, increasing the contact area. No additional washers are needed. They have good anti-loosening performance, especially the serrated type, which has strong vibration resistance.
Applications: Commonly used in equipment with high anti-loosening requirements, such as wind power generation, rail transportation, and automobile chassis.
Slotted Nut + Cotter Pin
Features: Slotted at the top, used with a cotter pin for mechanical locking, ensuring absolutely reliable anti-loosening.
Applications: Used in applications subject to severe vibration or impact, such as critical components like aircraft landing gear, engine connecting rods, and wheel axles.




