Trade Discount 20%
Hexalobular-Type Cheese Head Screw | Low Head Design | Zinc Nickel Coating | Corrosion Resistant | @Pack of 25 | by Wurth
Hexalobular-Type Cheese Head Screw with a low head design and zinc nickel coating is perfect for applications where corrosion resistance is critical. Built for industrial and construction use, this screw offers a decorative black finish and high thermal capacity, ensuring durability and reliability in mechanical assemblies.
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Product Name/Title: Hexalobular-Type Cheese Head Screw | Low Head Design | Zinc Nickel Coating | Corrosion Resistant | @Pack of 25 | by Wurth
Brand: Wurth
SKU: 40006420
Alternatively Known As: Torx screw, Hexalobular socket screw, Low head socket screw, Zinc nickel coated screw, Corrosion resistant fastener
Technical Specifications
- Thread type x nominal diameter: M4
- Length: 20 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 h
- 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
- Thread length (metric thread): 20 mm
- Product class: A
- Dimensions (H x L x W): 3.1mm x 20mm x 7mm
- Weight: 0.02 kg
Key Features
- Galvanised chromium (VI)-free zinc-nickel black coating (ZNBHL) for high corrosion resistance
- Decorative black finish with integrated lubricating particles in the 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 for compact fastening
Professional Installation Requirements
- Installation by a qualified professional or technician is recommended to ensure proper torque and fastening integrity.
Applications
- Suitable for applications with a high risk of corrosion
- Used in mechanical assemblies requiring corrosion-resistant fasteners
- Ideal for industrial and construction use where durable fastening is needed
Standards & Compliance
- Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- Long corrosion resistance extends product life, reducing waste and replacement frequency
Warranty Information
Warranty against manufacturing defects as per Wurth standard terms and conditions.
Available Now
Wurth Hexalobular-Type Cheese Head Screw Low Head M4 x 20mm Zinc Nickel Black 25 PCS is available for immediate purchase, ideal for industrial and construction fastening applications.
