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Hexalobular-type Cheese Head Screw | Low Head Design | Corrosion Resistant | Zinc Nickel Coated | @Pack of 25 | by Wurth
Hexalobular-type cheese head screw with a low head design and corrosion-resistant zinc nickel coating, perfect for high corrosion risk applications. Built for industrial and construction fastening needs, this screw offers a decorative black finish and thermal capacity up to 120°C, ensuring durability and reliability in mechanical assemblies.
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Technical Specifications
- Thread type x nominal diameter: M4
- Length: 40 mm
- Head diameter: 7 mm
- Head height: 3.1 mm
- Standards: ISO 14580
- Material: Steel
- Property class: 8.8
- Surface: Zinc nickel black
- RoHS-compliant: Yes
- Corrosion protection period: 480 hours
- Head type: Socket low head
- Drive type: Internal hexalobular
- Internal drive: TX20
- Thread type: Metric thread
- Pitch: 0.7 mm
- Thread form: Standard metric thread
- Thread design: Full thread
- Product class: A
- Dimensions (H x L x W): 3.1mm x 40mm x 7mm
- Weight: 0.05 kg
Key Features
- Galvanised chromium (VI)-free zinc-nickel black coating (ZNBHL) for high corrosion resistance
- Decorative black finish with integrated lubricating particles in top coat
- Corrosion resistance up to 480 hours for diameter ≥ M4 according to DIN EN ISO 9227 NSS
- Thermal capacity up to 120°C
- Adjusted friction coefficient range from 0.09μ to 0.14μ
- Full metric thread with internal hexalobular (TX20) drive
- Socket low head design
Professional Installation Requirements
- Installation by a qualified professional is recommended to ensure proper torque and fastening integrity.
Applications
- Suitable for high corrosion risk applications
- Used in mechanical assemblies requiring corrosion-resistant fasteners
- Ideal for industrial and construction fastening needs
Standards & Compliance
- Complies with AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- Long corrosion resistance extends product life, reducing waste
Warranty Information
Warranty against manufacturing defects as per Wurth standard policy.
Available Now
Available for immediate purchase, ideal for industrial, construction, and mechanical fastening applications.
