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Hex Socket Button Head Screw M4 Zinc Nickel Black Coating Wurth
Wurth Hex Socket Button Head Screw Zinc-Nickel Black features M4, 40mm length and 7.6mm head diameter. Thermal capacity up to 120°C.
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Technical Specifications
- Thread type x nominal diameter: M4
- Length: 40 mm
- Head diameter: 7.6 mm
- Head height: 2.2 mm
- Standards: ISO 7380-1
- Material: Steel
- Property class: 010.9
- Surface: Zinc nickel black
- Corrosion protection period: 480 h
- Head type: Button head
- Drive type: Hexagon socket
- Internal drive: HS2.5
- Thread type: Metric thread
- Thread form: Standard metric thread
- Thread length: 20 mm
- Product class: A
- RoHS-compliant: Yes
- Dimensions (H x L x W): 2.2mm x 40mm x 7.6mm
- Weight: 0.02 kg
Key Features
- Zinc-nickel black coating providing corrosion resistance up to 480 hours
- Chromium (VI)-free coating with integrated lubricating particles
- Thermal capacity up to 120°C
- Adjusted friction coefficient range of 0.09 μ–0.14 μ
- Complies with ISO 7380-1 standard
- Button head with hexagon socket drive (HS2.5)
Professional Installation Requirements
- Installation by a qualified technician or tradesperson is recommended to ensure proper torque and fastening integrity.
Applications
- High corrosion risk environments requiring durable fasteners
- Mechanical assemblies needing secure fastening with hexagon socket drive
- Industrial and automotive applications requiring RoHS-compliant screws
Standards & Compliance
- AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- RoHS-compliant material ensures reduced hazardous substances
Warranty Information
Wurth standard warranty against manufacturing defects applies.
Available Now
Available for immediate purchase, ideal for industrial, automotive, and mechanical fastening applications requiring corrosion-resistant screws.
