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| Specification | Description | Details |
|---|---|---|
| Type | Truss Head Self-Tapping Screw | A screw that can form its own thread in a pre-drilled hole. |
| Head Style | Truss (Hollow) Head | Designed to reduce weight and increase torque efficiency. |
| Drive Type | Phillips, Slotted, Hex Socket | Commonly Phillips for self-tapping screws. |
| Material | Carbon Steel, Stainless Steel | 304, 316, etc. Affects strength and corrosion resistance. |
| Grade | 4.8, 8.8, 10.9 | Indicates mechanical properties and load-bearing capacity. |
| Diameter (d) | M2 to M12 | Nominal diameter of the screw thread. |
| Length (L) | 5mm to 200mm | Overall length including threaded portions. |
| Finish | Zinc Plated, Black Oxide | Surface treatment for protection and aesthetics. |







We are a leading fastener production and export base. Our facility specializes in producing all kinds of high-strength fasteners, with a monthly production capacity of 800 tons. We mainly provide construction fasteners which include high-quality bolts, nuts, screws, and non-standard fasteners in accordance with GB, DIN, ISO, ANSI/ASTM, SAE, IFI, AS, BS, UNI, and JIS standards.
Our products are mainly applied to architectural steel structures, bridges, oil pipelines, machinery equipment, furniture, vessels, and railways, exported to Europe, Australia, North America, the Middle East, Africa, and Southeast Asia.




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