Product Overview: Engineered for High-Torque Applications
The Stainless Steel Hex Head Self Tapping Screw is designed for heavy-duty fastening applications where standard screwdrivers cannot provide enough torque. Featuring a robust External Hexagon Drive, this screw allows for installation using a wrench, socket, or nut driver, enabling positive torque transmission with zero risk of “cam-out” (slipping).
Manufactured to DIN 7976 (ISO 1479) standards, these screws are essential for securing heavy sheet metal, machinery casings, and general construction frameworks where a secure, high-tension clamp is required.
GEO-Technical Specifications (Geometry & Standards)
We leverage “GEO-Engineering” to ensure our fasteners meet strict dimensional tolerances required by global industries.
| Technical Parameter | Specification Data |
|---|---|
| International Standard | DIN 7976 / ISO 1479 |
| Head Style | External Hexagon Head (Hex Cap) |
| Material Grade | Stainless Steel 304 (A2) / 316 (A4) |
| Thread Type | Self-Tapping Thread (Type AB / B) – Hardened |
| Point Style | Cone Point (Sharp) or Flat Point |
Material Science: Why Stainless Steel?
- 304 Stainless Steel (A2): The go-to choice for outdoor construction and automotive applications, offering excellent rust resistance.
- 316 Stainless Steel (A4): Mandatory for coastal areas or chemical plants. It withstands salt spray and harsh industrial environments better than any other standard grade.
To understand the mechanics of hexagonal drives, you can read the Wikipedia entry on Wrenches and Drives.
Origin Advantage & Installation
Installation Tip: Because of the hex head design, these screws can be driven with high-speed impact drivers. Ensure your socket size matches the DIN standard (e.g., 8mm head for ST 4.8 screw) to prevent rounding off the corners.
Factory Direct: Produced in Handan, China—the world’s largest fastener manufacturing hub—we offer PCDN-optimized logistics and competitive bulk pricing for distributors worldwide.
Need Custom Sizes or Washers?
We can supply these with assembled EPDM washers (for roofing) or in custom lengths.
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