Hex head flange self-tapping screws are manufactured from carbon steel or stainless steel, combining the high-torque advantage of a hex head with the anti-loosening function of a flange surface. The hex head design is compatible with various wrenches and power tools, enabling quick application of high torque to ensure secure connections. The flange surface enlarges the contact area with the connected material, evenly distributing pressure to effectively prevent substrate deformation and screw loosening—particularly suitable for high-vibration or heavy-load working environments. The self-tapping threads eliminate the need for pre-drilling, directly cutting or pressing into materials like metal, wood, and plastic to form internal threads, significantly enhancing installation efficiency and reducing construction costs.
Carbon steel variants, treated with galvanization or Dacromet for rust prevention, achieve strength grades of 4.8-10.9, making them suitable for conventional applications such as indoor/outdoor construction steel structures and machinery assembly. Stainless steel types (e.g., 304, 316) offer exceptional corrosion resistance, ensuring long-term performance in harsh environments like humidity, salt fog, and acid-base conditions. They are widely used in outdoor facilities, shipbuilding, food processing equipment, and other high-standard fields. With thread sizes ranging from M4 to M12 and lengths from 12-80mm, these screws fit 2-6mm thick plates. Manufactured in strict compliance with national standards such as GB /T 16824.2 , they provide reliable, high-quality fastening solutions for various industrial and civil applications, delivering efficient and durable connections.
