| Item | Specification Details |
|---|---|
| Product Name | Hex Head Bolt / Full Thread Hex Bolt |
| Material | Grade 4.8 High Strength Carbon Steel |
| Surface Finish | Blue White Zinc Plated, Anti-rust Electroplating |
| Standard Sizes | M5, M6, M8, M10, M12, M14, M16; Custom thread length available |
| Structure | Standard six-sided hex head + full rolled thread shank, strength grade marked on head top |
| Applicable Base | General machinery, steel frames, construction, pipeline brackets, automobile parts, workshop equipment |
| Core Features | Standard hex head compatible with socket/wrench tools; full uniform precision thread for stable nut matching; zinc plating for oxidation resistance; high versatility, cost-effective |
| Application Scenarios | Civil engineering assembly, mechanical maintenance, metal frame connection, fixture installation, agricultural machinery fixing |
| Custom Service | OEM & ODM, customized thread length, optional strength grades (4.8 / 8.8 / 10.9), yellow zinc / black oxide surface treatment |
Hex Head Bolt
Hex Head Bolt is a universal standard fastener widely applied in all kinds of mechanical and building assembly work.
This bolt is made of Grade 4.8 carbon steel with blue white zinc plating on the surface, forming a compact protective film to prevent rust under indoor and mild outdoor humid conditions. The regular hexagonal head is designed to fit open-end wrenches, box wrenches and socket spanners, enabling easy and slip-free tightening operations. The full rolled thread has smooth tooth surfaces and standard pitch, perfectly cooperating with hex nuts, flat washers and spring washers to provide long-lasting stable clamping force.
With balanced tensile and shear performance, it meets the fastening demands of most ordinary load scenarios. Compared with special-shaped bolts, hex head bolts feature wide compatibility and low overall cost, making them the most popular fastener for general assembly projects.
All finished hex head bolts pass hardness, tensile strength and thread precision tests before shipment, conforming to international industrial fastening standards. Custom thread lengths and different surface coatings can be produced to satisfy diverse bulk export order requirements.
