S-90236A139 M4 x 40 mm ISO 14581 Alloy Steel Torx Flat Head Screws
Alloy Steel Torx Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated alloy steel construction, extending service life in demanding environments
- High tensile strength from Class 8.8 rating, ensuring reliable performance under heavy loads and vibrations
- Enhanced torque transmission with T20 Torx drive, reducing cam-out risk and tool wear during installation
- Secure and consistent fastening due to fully threaded M4 x 0.7mm coarse thread design, minimizing loosening
- Precise flush mounting with standard 90° flat head profile, ideal for applications requiring a smooth surface finish
- Broad industrial compatibility with ISO 14581 compliance and Class 6h thread fit, ensuring interchangeability
- Environmental and safety compliance with RoHS 3 and REACH standards, suitable for regulated industries
Professional Applications & Engineering Value
Engineered for industrial applications, these M4 flat head Torx screws address critical challenges in machinery assembly, automotive components, and electronic enclosures. The zinc-plated alloy steel material provides excellent resistance to rust and wear, while the Class 8.8 strength ensures durability under high-stress conditions. The T20 Torx drive offers superior torque control, reducing installation errors and enhancing efficiency. With fully threaded coarse threads and precise Class 6h fit, these screws deliver consistent clamping force, preventing joint failure in right-hand thread applications. Ideal for use where flush mounting and reliable fastening are paramount, they meet ISO 14581 standards for quality assurance.
Specification Summary & Compliance
This M4 x 0.7mm x 40mm screw features a Class 6h thread fit with coarse spacing and right-hand direction, ensuring dimensional accuracy per metric standards. Manufactured from zinc-plated alloy steel with a hardness of Rockwell C22, it complies with ISO 14581 for flat head screw specifications. Additionally, it is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, supporting safe and sustainable industrial use.
