Trade Discount 20%
Screw with Flattened Half Round Head | Zinc-Nickel Coated | Corrosion Resistant | Hexagon Socket Drive | @Pack of 25 | by Wurth
Screw with Flattened Half Round Head offers a zinc-nickel coating for superior corrosion resistance, making it ideal for high-risk environments. Designed for industrial and automotive applications, this screw features a hexagon socket drive for secure fastening and a button head design for aesthetic appeal. With a corrosion protection period of up to 480 hours, it ensures durability and reliability in various mechanical fastening tasks.
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Product Name/Title: Screw with Flattened Half Round Head | Zinc-Nickel Coated | Corrosion Resistant | Hexagon Socket Drive | @Pack of 25 | by Wurth
Brand: Wurth
SKU: 42526416
Alternatively Known As: Button head screw, Hex socket screw, Zinc-nickel coated screw, ISO 7380-1 screw, Black coated fastener
Technical Specifications
- Thread type x nominal diameter: M4
- Length: 16 mm
- Head diameter: 7.6 mm
- Head height: 2.2 mm
- Standard: ISO 7380-1
- Material: Steel
- Property class: 010.9
- Surface finish: Zinc nickel black (ZNBHL)
- Corrosion protection period: 480 hours
- Head type: Button head (flattened half round)
- Drive type: Hexagon socket (HS2.5)
- Thread form: Standard metric thread
- Product class: A
- RoHS-compliant: Yes
- Thermal capacity: Up to 120°C
- Friction coefficient range: 0.09 μ–0.14 μ
- Dimensions (H x L x W): 2.2mm x 16mm x 7.6mm
- Weight: 0.01 kg
Key Features
- Zinc-nickel black coating providing high corrosion resistance
- Chromium (VI)-free environmentally safer coating
- Corrosion resistance up to 480 hours for M4 diameter screws
- Top coat with integrated lubricating particles for adjusted friction
- Thermal capacity up to 120°C
- Functional and decorative finish
- Hexagon socket drive for secure fastening
- Button (flattened half round) head design
Professional Installation Requirements
- Installation by qualified personnel recommended to ensure correct torque and fastening integrity.
Applications
- High corrosion risk environments requiring durable fasteners
- Industrial machinery assembly
- Automotive and transport equipment
- Electrical and electronic equipment fastening
- General mechanical fastening requiring corrosion resistance
Standards & Compliance
- Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation) for electrical fasteners
- Meets corrosion resistance standards aligned with ISO 9227 NSS salt spray testing
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- RoHS-compliant material ensuring reduced hazardous substances
Warranty Information
Warranty against manufacturing defects as per Wurth standard terms and conditions.
Available Now
Available for immediate purchase, ideal for industrial, automotive, and electrical applications requiring high corrosion resistance.
