We source and stock hex flange bolt m8 in stainless and carbon steel to meet tough assembly needs. I work directly with factories to guarantee consistent quality and on-time delivery. If you need Custom solutions, I can tailor thread length, coating, and packaging to your specs. My experience with Buyers from Factories means I understand the rush of production lines and the importance of reliable fasteners in harsh environments. The hex flange bolt m8 is made with a precise hex head and integrated flange to distribute load and prevent loosening, ideal for machinery frames, enclosures, and automotive fixtures. We hold ISO/9001, and perform tensile tests and coating checks to ensure corrosion resistance. Direct factory pricing means you save costs on large orders while still getting fast sampling and small-batch runs. Tell me your quantity, coating (zinc, black oxide, galvanized), and dimension tolerance, and I will propose a solution that fits your assembly line and budget.
Hex flange bolts in M8 size are engineered to deliver secure clamping, clean appearance, and vibration resistance across assemblies that house electronics enclosures, automotive components, and machinery. The flange distributes load, reduces loosening, and simplifies installation, making them a dependable choice for critical joints. Rooted in a modern manufacturing hub in Dongguan, known for precision electronics manufacturing and efficient logistics, this producer leverages advanced metallurgy and controlled processes. Materials range from stainless steel to alloy steel, with finishes such as zinc, black oxide, or galvanizing. Each batch undergoes strict inspection and traceability to ensure consistent performance. Global buyers benefit from scalable production, rapid quotes, flexible MOQs, and export-ready packaging. Technical support helps select the right size, coating, and torque, while rigorous testing—tensile strength, dimensional checks, and corrosion resistance—backs every shipment with confidence.
| Size | Material | Grade | Finish/Coating | Coating Thickness (μm) | Thread Pitch (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HRC) | Flange Diameter (mm) | Temp Range (°C) | Certifications |
|---|---|---|---|---|---|---|---|---|---|---|---|
| M8 x 16 | Alloy steel | 8.8 | Zinc plated | 5–8 | 1.25 | 800 | 640 | 28–34 | 13.0 | -60 to 260 | ISO 9001, IATF 16949 |
| M8 x 20 | Alloy steel | 10.9 | Zinc plated | 8–12 | 1.25 | 1000 | 900 | 38–46 | 13.5 | -60 to 260 | ISO 9001 |
| M8 x 25 | Stainless steel (A2-70) | 304 | Satin passivated | N/A | 1.25 | 520 | 215 | 15–18 | 15.8 | -196 to 550 | ISO 9001 |
| M8 x 30 | Alloy steel | 8.8 | Black oxide | 2–5 | 1.25 | 800 | 640 | 30–34 | 14.0 | -60 to 260 | ISO 9001 |