Carbon Steel Self-Tapping Screws
Product Overview
This screw is an American standard cross recess pan head self‑tapping screw, a widely used general‑purpose fastener in both industrial and domestic applications. The product is made of high‑quality carbon steel substrate, heat‑treated for hardening, and finished with a blue‑white zinc plating on the surface, combining excellent self‑tapping cutting performance with rust resistance. It is suitable for connecting thin sheets, plastic parts, and medium-to-low-density wood. The pan head with cross recess design balances installation convenience and bearing stability, making it a commonly used fastener in furniture manufacturing, appliance assembly, and renovation projects.
Product Applications
Furniture Manufacturing Industry: Suitable for assembly and fixing of panel furniture, wood panels, and plastic furniture; the pan head design prevents cracking of panels while ensuring connection strength.
Home Appliance and Electronics Industry: Used for assembling appliance housings, plastic parts, and electronic device enclosures; short lengths suit thin‑part connections without affecting internal space.
Renovation and Construction Projects: Can be used for temporary or permanent fixing of light‑gauge steel framing, gypsum boards, and colour‑coated steel sheets; the self‑tapping structure improves construction efficiency, and the zinc plating suits indoor humid environments.
DIY and General Maintenance: Widely used in home renovation, handicrafts, and equipment repairs for general connections, making it a common fastener for household maintenance and DIY projects.
Product Features
Standardised Specifications with Stable Performance: Manufactured in accordance with American standards, compatible with common tools; after heat treatment, it achieves high hardness, resisting breakage and slippage for reliable connections.
Convenient and User‑Friendly Installation: The pan head offers a large bearing area, reducing the risk of crushing panels; the cross recess is compatible with standard screwdrivers/driver bits, enabling efficient operation with reduced slippage.
Sharp‑Point Self‑Tapping for High Efficiency: Eliminates pre‑drilling, allowing direct tapping and driving into wood, plastics, and thin steel sheets, suitable for rapid assembly scenarios.
Zinc Plating for Rust Resistance and Durability: The blue‑white zinc plating forms a protective anti‑corrosion layer, suitable for indoor and mildly humid environments, offering high cost‑effectiveness.
| Material | Carbon steel |
| Surface Treatment | Blue-white zinc |
| Head Type | Pan head |
| Slot Type | Phillips |
| Thread Type | Full thread |
| Screw Diameter | approx. 4.2mm |
| Screw Length | Optional (10mm to 50mm) |
| Screw Type | Self-tapping screw |
| Corrosion Resistance | Medium (suitable for indoor dry, indoor low-humidity environments) |
| Applicable Tools | Phillips screwdriver or power tool |

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malingfei@linghongscrew.com

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