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Countersunk Screw ISO 14581 | Zinc-Nickel Plated | Corrosion Resistant | @Pack of 100 | by Wurth
Countersunk screws ISO 14581 with zinc-nickel plating and high corrosion resistance are perfect for industrial and construction applications. Designed for M4 diameter, these screws offer a corrosion protection period of up to 480 hours, making them ideal for high-risk environments. With an internal hexalobular drive, they ensure secure fastening in mechanical assemblies.
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Product Name/Title: Countersunk Screw ISO 14581 | Zinc-Nickel Plated | Corrosion Resistant | @Pack of 100 | by Wurth
Brand: Wurth
SKU: 4012648
Alternatively Known As: Hexalobular countersunk screw, Torx countersunk screw, ISO 14581 screw, Zinc-nickel coated screw, Black zinc countersunk screw
Technical Specifications
- Thread type x nominal diameter: M4
- Length: 8 mm
- Head diameter: 8.4 mm
- Head height: 2.7 mm
- Standards: ISO 14581
- Material: Steel
- Property class: 08.8
- Surface: Zinc nickel black
- RoHS-compliant: Yes
- Corrosion protection period: 480 hours
- Head type: Countersunk head
- Drive type: Internal hexalobular
- Internal drive size: TX20
- Thread type: Metric thread
- Pitch: 0.7 mm
- Thread form: Standard metric thread
- Product class: A
- Dimensions (H x L x W): 2.7mm x 8mm x 8.4mm
- 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 480 hours for M4 diameter screws
- Adjusted friction coefficient between 0.09μ and 0.14μ due to integrated lubricating particles
- Thermal capacity up to 120°C
- Even coating distribution for functional and decorative purposes
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 countersunk head screws
- Industrial and construction applications with metric thread requirements
Standards & Compliance
- AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
- Chromium (VI)-free coating reduces environmental and health hazards
- RoHS-compliant material ensures 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, mechanical, and construction fastening applications.
