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M5–M12 A2-70 304 Stainless Steel GB5787 Hexagon Head with Serrated Flange Cap Screw Hex Washer Head Bolt
M5–M12 A2-70 304 Stainless Steel GB5787 Hexagon Head with Serrated Flange Cap Screw Hex Washer Head Bolt
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$3.72 USD
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M5–M12 A2-70 304 Stainless Steel GB5787 Hexagon Head with Serrated Flange Cap Screw — Hex Washer Head Bolt
A2-70 grade 304 stainless steel hex head serrated flange cap screws (hex washer head bolts) to GB5787 standard. The integrated serrated flange combines the function of a hex bolt and a toothed lock washer in a single component — the serrations bite into the workpiece surface when tightened, providing anti-loosening resistance without a separate washer. Corrosion-resistant 304 stainless steel for electronics, outdoor, and humid environments.
Key Specifications
| Material | 304 Stainless Steel |
|---|---|
| Grade | A2-70 |
| Standard | GB5787 |
| Drive | Hexagon head (hex wrench / spanner) |
| Flange Type | Serrated (toothed) — anti-loosening |
| Thread Range | M5, M6, M8, M10, M12 |
Why Choose Serrated Flange Hex Bolts?
- Integrated serrated flange — eliminates separate lock washer; reduces parts count and assembly time
- Anti-loosening serrations — teeth bite into workpiece for superior vibration resistance
- A2-70 304 SS — corrosion-resistant for electronics, outdoor, and humid environments
- Hex head drive — high torque with standard hex wrenches and spanners
- M5–M12 range — covers light electronics to medium structural assembly
Typical Applications
- Motor and gearbox mounting (anti-loosening without separate washer)
- Aluminium extrusion profile assembly
- Electronics enclosure panel fastening
- 3D printer frame and motion system assembly
- Robotics and automation frame assembly
Package Contents
- GB5787 A2-70 304 SS hex serrated flange cap screws (quantity and size per selected variant)
