1. Surface treatment
Galvanized hexagonal nuts: After hot-dip galvanizing, there is a zinc layer on the surface, which has good corrosion resistance.
Ordinary hexagonal nuts: Usually there is no special surface treatment, the surface is ordinary steel, and it is easy to rust.
2. Corrosion resistance
Galvanized hexagonal nuts: The zinc layer can effectively prevent the nuts from rusting, and it is suitable for use in humid or outdoor environments.
Ordinary hexagonal nuts: The corrosion resistance is poor and it is suitable for use in dry environments.
3. Strength
Galvanized hexagonal nuts: The strength grade is usually higher, such as grade 8.8 and grade 10.9, which is suitable for high-strength connections.
Ordinary hexagonal nuts: The strength grade is lower, such as grade 4.4, grade 4.8 and grade 5.6, which is suitable for general connections.
4. Application scenarios
Galvanized hexagonal nuts: Widely used in scenes that require high strength and corrosion resistance, such as construction, bridges, and machinery manufacturing.
Ordinary hexagonal nuts: Suitable for general industry, automobiles, furniture and other fields.
5. Appearance
Galvanized hexagonal nut: The surface is smooth, silvery white, and has a good appearance.
Ordinary hexagonal nut: The surface color is darker, usually gray.
6. Price
Galvanized hexagonal nut: Due to the complex surface treatment process, the price is relatively high.
Ordinary hexagonal nut: The price is more economical.
7. Compatibility
Galvanized hexagonal nut: When used with galvanized bolts, it can effectively prevent electrochemical corrosion.
Ordinary hexagonal nut: When used with galvanized bolts, electrochemical corrosion may occur.
