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| Specification | Description | Details |
|---|---|---|
| Type | Truss Head Self-Tapping Screw | Forms its own thread in pre-drilled holes. |
| Head Style | Truss (Hollow) Head | Designed to reduce weight and increase efficiency. |
| Drive Type | Phillips, Slotted, Hex Socket | Commonly Phillips for self-tapping mechanisms. |
| Material | Carbon Steel, Stainless Steel | Affects strength, corrosion resistance, and look. |
| Grade | 4.8, 8.8, 10.9, etc. | Indicates mechanical properties and load capacity. |
| Diameter (d) | M2 to M12 | The nominal diameter of the screw thread. |
| Length (L) | 5mm to 200mm | Overall length including threaded portions. |
| Thread Pitch | Coarse, Fine, Extra-Fine | Affects the fastening grip and application. |
| Finish | Zinc Plated, Black Oxide | Surface treatment for protection and aesthetics. |





| Shipping Method | Regions | Estimated Time | Options |
|---|---|---|---|
| Ocean Shipping | Global | 20 - 45 working days | Boxes, Cartons, Plastic Bags |
| Air Transport | Global | 1 - 7 business days | Express Packaging |

We specialize in producing all kinds of high-strength fasteners, with a monthly production capacity of 800 tons. We provide high-quality bolts, nuts, screws, and non-standard fasteners in accordance with GB, DIN, ISO, ANSI/ASTM, SAE, JIS standards.
Our products are widely applied to architectural steel structures, bridges, oil pipelines, machinery equipment, furniture, vessels, and railways. We are certified by ISO9001 and implement strict quality control from raw materials to final production.



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