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Hex Flange Bolt M4 Zinc Plated Steel Serration Locking 20mm Wurth
Wurth Hex Flange Bolt Zinc Plated Steel Serration features M4, 20mm length and 10mm head diameter. Hexagon head with flange for increased bearing surface.
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Technical Specifications
- Thread type x nominal diameter (d1): M4
- Length (l1): 20 mm
- Head diameter (dc): 10 mm
- Head height (k1): 4.2 mm
- Standards: WN 274
- Material: Steel
- Property class: 8.8
- Surface: Zinc plated
- Locking device operating principle: Serration
- Locking function: Locking against self-loosening by mechanical interlocking
- Head type: Hexagon head with flange
- Drive type: Outer hexagon
- External drive (s1): WS7
- Thread type: Metric thread
- Pitch: 0.7 mm
- Thread form: Standard metric thread
- Thread design: Full thread
- RoHS-compliant: Yes
- Dimensions (H x L x W): 4.2mm x 20mm x 10mm
- Weight: 0.1 kg
Key Features
- Hexagon head with flange for increased bearing surface
- Zinc plated steel for corrosion resistance
- Serration locking device to prevent self-loosening
- Full metric thread with 0.7 mm pitch
- Property class 8.8 for high strength
Professional Installation Requirements
- Installation by a qualified technician or tradesperson is recommended to ensure proper torque and secure fastening.
Applications
- Mechanical assemblies requiring secure fastening
- Industrial machinery and equipment
- Automotive repairs and maintenance
- General construction and manufacturing
Standards & Compliance
- Complies with AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- RoHS-compliant material ensures reduced hazardous substances
Warranty Information
Standard manufacturer warranty against defects applies.
Available Now
The Wurth M4 x 20mm Hexagon Head Flange Bolt is available for immediate purchase, ideal for industrial, automotive, and construction fastening applications.
