S-90236A166 M8 x 16 mm ISO 14581 Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated alloy steel construction for extended service life in harsh environments
• Exceptional torque transmission through T45 Torx drive design, minimizing cam-out and tool slippage during installation
• High mechanical strength with Class 8.8 rating and Rockwell C22 hardness, ensuring reliable performance under heavy loads
• Precision flush mounting with 90° countersink angle and standard flat head profile for seamless surface integration
• Optimized thread engagement through M8x1.25mm coarse threading and Class 6h fit, providing secure fastening in various materials
• Full-threaded design maximizes grip length and distributes stress evenly across the entire fastener
• Global compliance assurance meeting ISO 14581 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

These M8 flat head screws deliver critical engineering solutions where high-strength fastening meets precision installation requirements. The zinc-plated alloy steel construction provides essential corrosion protection for industrial equipment, machinery frames, and outdoor applications exposed to moisture and chemicals. The T45 Torx drive system addresses common installation challenges by eliminating cam-out issues that can damage fastener heads and compromise joint integrity. With Class 8.8 strength rating and Rockwell C22 hardness, these metric fasteners maintain clamping force in high-vibration environments while the coarse 1.25mm pitch threading ensures rapid assembly in production settings. The fully threaded design and 90° countersink create secure, flush-mounted connections in metal fabrication, automotive components, and heavy equipment manufacturing where reliability is paramount.

Specification Summary & Compliance

This fastener features precision M8x1.25mm coarse threading with Class 6h thread fit per metric standards, ensuring consistent engagement across applications. Manufacturing complies with ISO 14581 specifications for dimensional accuracy and performance requirements. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming restricted substance adherence. The Class 8.8 strength classification guarantees minimum tensile strength of 800 MPa and yield strength of 640 MPa, supported by Rockwell C22 hardness testing for consistent mechanical properties.