Hexagonal Nuts
- National Standard Code:GB/T 41 Grade C
- Material:Q235 Carbon Steel
- Surface Treatment:Black oxide finish、Electro-galvanized、Hot-dip galvanized、Dacromet coating
- Available Diameters:M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30 M33 M36 M42 M48 M56 M64 M72
- Matching Bolt Grade:Grade 4.8
Product Detail

Integrally cold-forged hexagonal ring structure with precision tapped internal thread of 6H tolerance grade. Each nut is an independent standard fastener.
This Grade 4.8 hex nut is exclusively matched with Grade 4.8 bolts for light-load enclosure and secondary support steel connections including roof purlins, wall beams, bracing rods and guardrails of the project. It is only applicable to non-load-bearing secondary joints. High-strength nuts shall be uniformly adopted for main load-bearing components. Thickened galvanized anti-corrosion treatment is available for corrosive environments. Graded matching ensures reliable connection safety.
Notes:
This Grade 4.8 fastener shall only be used with Q235 structural parts of the same material. It is strictly prohibited for fastening workpieces made of high-strength base metal, alloy steel and other non-Q235 materials.Custom thread sizes are available to match supporting bolts.
