M6M8M10M12M14M16 10.9 grade toothed flange outer hexagon screw black with pad anti-skid hexagon bolt for Construction & Machinery

Our Grade 10.9 Black Serrated Flange Hex Screws with Integrated Washer—available in M6, M8, M10, M12, M14, and M16 sizes—are industrial-grade anti-slip fasteners engineered for heavy-duty applications across construction, machinery, industrial equipment, and automotive use. Crafted to meet Grade 10.9 strength standards, these black-finished hex bolts combine exceptional durability, anti-slip performance, and convenient installation, making them a reliable choice for professionals, contractors, and hardware wholesalers.

 

Made from high-quality carbon steel and heat-treated to Grade 10.9 specifications, these screws deliver superior tensile and shear strength, capable of withstanding heavy loads, high vibration, and harsh working conditions. The black finish enhances corrosion resistance and wear resistance, protecting the bolts from moisture, rust, and environmental damage—ideal for both indoor and outdoor installations, including construction sites and industrial workshops.

 

The integrated serrated flange washer is the key to their anti-slip performance: the serrated teeth on the flange grip tightly onto the mounting surface, preventing loosening caused by vibration, torque, or repeated use. This design eliminates the need for separate washers, streamlining installation and ensuring a secure, long-lasting connection. The outer hexagon (hex head) design allows for easy torque application with standard hex tools, reducing slippage and enabling efficient, precise installation—even in tight spaces.

 

Available in a full range of sizes (M6, M8, M10, M12, M14, M16), these anti-slip hex bolts cater to diverse fastening needs, from light-duty home improvement and equipment maintenance to heavy-duty industrial assembly, construction framing, and automotive repairs. Their versatile design makes them suitable for use with metal, wood, and composite materials, providing consistent performance across different applications.

 

Precision-manufactured to meet strict industrial standards, each screw undergoes rigorous quality control to ensure consistent sizing, accurate threading, Grade 10.9 strength compliance, and serrated flange functionality. Whether you’re securing industrial equipment, assembling machinery, or working on construction projects, our Grade 10.9 Black Serrated Flange Hex Screws with Washer deliver the strength, anti-slip reliability, and convenience needed for professional-grade fastening.