S-90236A131 M4 x 8 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 for extended service life in demanding environments
- High-strength Class 8.8 rating ensures reliable performance under significant mechanical stress and vibration
- Enhanced torque transmission with T20 Torx drive design, reducing cam-out risk and tool wear
- Optimal material hardness at Rockwell C22 maintains structural integrity during installation and use
- Full threading design provides maximum grip length and uniform stress distribution across joined materials
- Precision ISO 14581 compliance guarantees dimensional accuracy and interchangeability in global applications
- Standard 90° countersink angle enables flush mounting for clean, professional finishes
Professional Applications & Engineering Value
These M4 flat head screws deliver critical engineering solutions where space constraints and surface finish matter. The zinc-plated alloy steel construction provides essential corrosion protection for industrial equipment, machinery assemblies, and outdoor applications. With Class 8.8 strength and fully threaded coarse pitch design, these fasteners maintain clamp force under dynamic loads and thermal cycling. The Torx T20 drive system enables higher torque application than Phillips or slot drives, reducing installation time and preventing fastener damage in high-volume production environments. The metric coarse threading ensures rapid assembly while the flat head profile creates seamless surfaces in countersunk applications across automotive, electronics, and heavy equipment sectors.
Specification Summary & Compliance
This fastener meets ISO 14581 dimensional standards with M4 x 0.7mm coarse thread and Class 6h thread fit tolerance. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 8mm length and 8.4mm head diameter maintain specification consistency for precision applications requiring standardized metric components.
