Trade Discount 20%
Screw with Flattened Half Round Head | Strength Class 10.9 | Zinc-Nickel Plated | Hexagon Socket Drive | by Wurth
This screw with a flattened half round head and strength class 10.9 is designed for high corrosion risk environments. Featuring a zinc-nickel plated finish for superior durability and a hexagon socket drive for easy installation, it's perfect for mechanical assemblies and industrial applications. With a chromium (VI)-free coating, it ensures environmental safety while providing reliable fastening solutions.
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Technical Specifications
- Thread type x nominal diameter: M4
- Length: 30 mm
- Head diameter: 9.4 mm
- Head height: 2.2 mm
- Internal drive: HS2.5 hexagon socket
- Material: Steel
- Property class: 10.9
- Surface finish: Zinc-nickel black coating (ZNBHL)
- Head type: Button head with collar
- Thread form: Standard metric thread
- Product class: A
- RoHS-compliant: Yes
- Dimensions (H x L x W): 2.2mm x 30mm x 9.4mm
- Weight: 0.02 kg
Key Features
- Zinc-nickel black coating providing corrosion resistance up to 720 hours according to DIN EN ISO 9227 NSS
- Chromium (VI)-free coating for environmental safety
- Adjusted friction coefficient range of 0.09 μ–0.14 μ due to integrated lubricating particles
- Thermal capacity up to 120°C
- Button head with collar and hexagon socket drive
- Steel material with strength class 10.9
- RoHS-compliant
Professional Installation Requirements
- Installation by qualified personnel recommended to ensure correct torque and fastening integrity.
Applications
- High corrosion risk environments requiring durable fasteners
- Mechanical assemblies needing high strength screws
- Industrial and automotive applications
- General fastening requiring hexagon socket button head screws
Standards & Compliance
- Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- RoHS-compliant ensuring restriction of hazardous substances
- Durable corrosion resistance extends product life reducing waste
Warranty Information
Warranty against manufacturing defects as per Wurth standard terms and conditions.
Available Now
Available for immediate purchase, ideal for industrial, automotive, and high corrosion risk fastening applications.
