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 zinc-nickel plated finish for superior corrosion resistance. Ideal for industrial and automotive fastening, it ensures secure fastening with its hexagon socket drive and is perfect for environments with high corrosion risks.
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: 42536440
Alternatively Known As: Button head screw with collar, Hex socket button head screw, Zinc-nickel plated metric screw, High strength steel screw M4x40
Technical Specifications
- Thread type x nominal diameter: M4
- Length: 40 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 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 40mm x 9.4mm
- Weight: 0.02 kg
Key Features
- Zinc-nickel black coating providing corrosion resistance up to 720 hours
- Chromium (VI)-free environmentally friendly coating
- 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 for secure fastening
- Steel material with strength class 10.9 for high mechanical performance
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 metric 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 replacement frequency
Warranty Information
Warranty against manufacturing defects as per Wurth standard terms and conditions.
Available Now
Available for immediate purchase, ideal for industrial, automotive, and mechanical fastening applications requiring high corrosion resistance and strength.
