I’m your dependable source for bolt head hexagon fasteners that perform in demanding assemblies. When you Buy bulk fasteners, you need consistent quality, tight tolerances, and swift delivery—and that’s what I deliver. I am an Exporter who understands the stresses of supply chains, so I stock a range of bolt head hexagon variants in carbon steel with zinc plating, Grade 8.8 and 12.9 equivalents, and stainless options for corrosion resistance. Each piece is precision-threaded, head scribed for torque accuracy, and packaged to minimize damage in transit. My focus on quality control means low reject rates and reliable compatibility with common metric and imperial nuts. Whether you’re building machinery, automotive, or construction components, these bolts provide secure clamping and easy installation. Drop me a message for bulk pricing, lead times, and packaging options, and I’ll tailor a solution that fits your project.
Quality fasteners do more than hold assemblies together; they guarantee peak performance. Hex bolt heads designed for maximum engagement reduce cam-out and deliver a repeatable torque-tension response across cycles. Through precision turning, controlled heat treatment, and specialist coatings, this range achieves high strength, tight tolerances, and excellent fatigue life, meeting or surpassing key benchmarks such as ISO 898-1 standards for grade and property, and corrosion resistance with protective finishes. Whether deployed in harsh industrial environments or precision electronics enclosures, well-engineered hex heads maintain reliable clamping force and reduce maintenance downtime. For global buyers, the advantage lies in supply stability, traceability, and customization. A capable manufacturer in a major manufacturing hub leverages automated inspection, first-article verification, and batch-level documentation to ensure consistent quality across regions. With options for various materials, coatings, thread pitches, and packaging, lead times are predictable, scale-ready, and compliant with RoHS and REACH. By partnering with a supplier that aligns performance guarantees with procurement realities—global logistics, responsive QC, and transparent reporting—customers can achieve accelerated deployment, lower total cost of ownership, and operation at peak efficiency in diverse applications.
| Size | Pitch (mm) | Material | Finish | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HRC) | Roughness Ra (µm) | Fatigue Life (cycles) | Dimensional Tolerance (mm) | Cp | Cpk | Defect Rate (%) | Lead Time (days) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M4 x 0.7 | 0.7 | Alloy steel 8.8 | Zinc plated | 800 | 640 | 31 | 0.8 | 1,000,000 | ±0.05 | 1.65 | 1.50 | 0.20 | 3 |
| M6 x 1.0 | 1.0 | Alloy steel 8.8 | Zinc plated | 820 | 660 | 32 | 0.8 | 1,200,000 | ±0.05 | 1.70 | 1.55 | 0.15 | 4 |
| M8 x 1.25 | 1.25 | Alloy steel 8.8 | Zinc plated | 840 | 680 | 33 | 0.8 | 1,400,000 | ±0.05 | 1.72 | 1.60 | 0.12 | 4 |
| M10 x 1.5 | 1.5 | Alloy steel 8.8 | Zinc plated | 860 | 700 | 34 | 0.9 | 1,600,000 | ±0.065 | 1.75 | 1.62 | 0.10 | 5 |
| M12 x 1.75 | 1.75 | Alloy steel 8.8 | Zinc plated | 880 | 720 | 35 | 0.9 | 1,800,000 | ±0.08 | 1.77 | 1.65 | 0.08 | 5 |
| M16 x 2.0 | 2.0 | Alloy steel 8.8 | Zinc plated | 900 | 740 | 36 | 1.0 | 2,000,000 | ±0.10 | 1.79 | 1.68 | 0.05 | 6 |