HEXAGON HEAD BOLT DIN933 M12×60

Our Heavy-Duty Hexgon Head Bolts are engineered for demanding applications requiring exceptional strength, durability, and reliable performance under extreme loads and harsh operating conditions. These bolts feature a robust heavy hex head design with a larger bearing surface and thicker head height compared to standard hex bolts, providing superior resistance to stripping and deformation under high torque. The heavy-duty construction makes them ideal for critical connections in steel structures, heavy machinery, mining equipment, bridge construction, offshore platforms, and industrial facilities where fastener failure is not an option. These bolts are available in diameters ranging from M12 to M64 (or 1/2"to 2-1/2"in inch sizes) with various thread lengths and pitches to suit diverse application requirements.

The Carbon Steel Hexgon Bolts are manufactured from high-quality carbon or alloy steel grades, including Grade 8.8, 10.9, and 12.9 for metric sizes, or Grade 5, Grade 8, and Grade B7 for inch sizes. These materials provide excellent mechanical properties with tensile strengths up to 1220 MPa, ensuring reliable clamping force and shear resistance in structural connections. The bolts undergo precise cold forging or hot forging processes to achieve accurate dimensional tolerances and superior thread quality. Through hardening and tempering heat treatment, these bolts achieve the required hardness and ductility balance, providing both strength and toughness to resist impact loads and fatigue. They are widely used in automotive manufacturing, heavy equipment assembly, construction machinery, and infrastructure projects.

Our Zinc-Plated Hexgon Bolts feature a protective electroplated zinc coating that provides corrosion resistance while maintaining a bright, attractive appearance. The zinc plating process involves electrodepositing a thin layer of zinc onto the bolt surface, offering effective protection against rust and oxidation in indoor environments and moderate outdoor exposure. Various plating thicknesses are available, from standard 5 microns to 12 microns or more, with optional chromate passivation treatments (yellow, clear, or black) to enhance corrosion resistance and provide aesthetic options. These bolts are commonly used in general construction, machinery assembly, automotive components, electronics, furniture, and maintenance applications where cost-effective corrosion protection is required. All our bolts are manufactured in accordance with international standards including DIN, ISO, ASTM, and JIS, with full traceability and test reports available upon request.