I supply a sturdy bolt screw hexagon for demanding OEM applications and for Suppliers who need reliable fasteners. Crafted from high-grade alloy, with tight hex tolerances, clean threads, and a corrosion-resistant coating, it meets ISO and DIN specs. I keep traceable QC, competitive pricing, and short lead times so your production lines keep moving. Whether you’re expanding an OEM line or stocking a busy supplier network, I can tailor finishes, thread pitches, and packaging to your exact requirements. Let’s discuss your sizes, coatings, and certifications and I’ll propose the best bolt screw hexagon for your project.
Hex bolts are the workhorse of structural and mechanical assemblies, spanning industries from automotive to machinery. The journey begins with a clear concept: selecting the right material (carbon steel, stainless steel, or alloy), choosing a finish (zinc plating, galvanizing, or black oxide), and aligning with global standards (ISO, DIN, ANSI). Early decisions on size, thread, and head style set the stage for manufacturability, strength, and a precise fit. From concept to delivery, sourcing hex bolts hinges on collaboration, quality control, and clear logistics. Define a precise BOM, specify tolerances and heat-treatment grades, and require traceable lot data. Implement sampling and pre-shipment inspection, and use packaging that protects against corrosion. Leverage digital order tracking and diversified sourcing to ensure on-time, defect-free delivery to global projects.
| Stage | Parameter | Specification / Description | Real World Value | Standards / Notes |
|---|---|---|---|---|
| Concept | Bolt family | Hex bolt with external thread, metric | M6 × 1.0 | ISO metric thread; general hex bolt family |
| Design | Material grade | Grade 8.8 steel | 8.8 | ISO 898-1; high-strength bolt class |
| Design | Head type | Hexagonal head for wrench access | Hex head | DIN EN ISO 4014 / DIN 931 / DIN 933 family |
| Manufacturing | Thread | External thread tolerance | Coarse thread M6 × 1.0, 6g | ISO 965-1; coarse thread standard |
| Manufacturing | Production process | Deformation method | Cold heading + heat treatment | Efficient for high-volume production |
| Manufacturing | Surface finish | Coating | Zinc electroplating with passivation | HDG typical 5–7 µm coating |
| Quality | Mechanical properties | Tensile strength, grade | Min 800 MPa; 8.8 class | ISO 898-1; hardness ~30–36 HRC |
| Quality | Dimensional tolerance | External/internal thread tolerances | External 6g; Internal 6H | ISO 965-1 / ISO 965-2 |
| Packaging | Packaging | Protection for shipment | Standard packaging; anti-corrosion packaging | Quality control before packing |
| Delivery | Compatibility | Nut compatibility | Fits with metric coarse nuts | DIN EN 16630 / ISO compatibility context |