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 is designed for high-strength applications, featuring a strength class of 10.9 and a durable zinc-nickel plating for superior corrosion resistance. Ideal for mechanical assemblies and industrial fastening, it ensures reliability in high corrosion risk environments, making it a perfect choice for automotive and industrial use.
Please sign in so that we can notify you about a reply
Sign in
Please login to continue to your account.
Product Name/Title: Screw with Flattened Half Round Head | Strength Class 10.9 | Zinc-Nickel Plated | Hexagon Socket Drive | by Wurth
Brand: Wurth
SKU: 4253648
Alternatively Known As: Button head screw with collar, Hex socket screw, Zinc-nickel plated fastener, ISO 7380-2 screw
Technical Specifications
- Thread type x nominal diameter: M4
- Length: 8 mm
- Head diameter: 9.4 mm
- Head height: 2.2 mm
- Internal drive: HS2.5 hexagon socket
- Standard: ISO 7380-2
- Material: Steel
- Property class: 10.9
- Surface finish: Zinc nickel black (ZNBHL)
- Head type: Button head with collar
- Drive type: Hexagon socket
- Thread form: Standard metric thread
- Product class: A
- RoHS-compliant: Yes
- Dimensions (H x L x W): 2.2mm x 8mm x 9.4mm
- Weight: 0.01 kg
Key Features
- Zinc-nickel black coating (ZNBHL) providing high corrosion resistance
- Chromium (VI)-free coating for environmental safety
- Corrosion resistance up to 720 hours base metal corrosion protection
- Top coat with integrated lubricating particles for adjusted friction coefficient (0.09 μ–0.14 μ)
- Thermal capacity up to 120°C
- Button head with collar and hexagon socket drive
- Steel material with strength class 10.9
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 fastening applications
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- 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 and mechanical fastening applications requiring high corrosion resistance.
