S-91294A022 M2.5 x 16 mm Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength with Class 10.9 rating and 120,000 psi capability for reliable performance in high-stress applications
• Superior corrosion resistance from black-oxide coating on alloy steel, extending service life in demanding industrial environments
• Optimized drive engagement with 1.5mm hex drive providing secure installation and reduced risk of stripping during assembly
• Precise flush mounting enabled by 90° countersink angle and standard flat head profile for clean, professional finishes
• Enhanced thread reliability through Class 6g thread fit and coarse 0.45mm pitch for secure fastening in various materials
• Versatile partial threading design allowing for both clamping force and alignment flexibility in assembly applications
• Industry compliance assurance meeting RoHS 3 and REACH regulations for safe, environmentally responsible manufacturing

Professional Applications & Engineering Value

These M2.5 flat head screws deliver critical engineering solutions where space constraints and material integrity are paramount. The black-oxide alloy steel construction provides essential corrosion protection while maintaining the Class 10.9 strength rating necessary for automotive, machinery, and electronic assembly applications. The partial threading design allows the unthreaded shank to act as a precision pilot, reducing stress concentration and preventing material damage during installation. With Rockwell C32 hardness and 120,000 psi tensile strength, these metric screws withstand vibration and dynamic loads in industrial equipment, while the 90° countersink angle ensures flush mounting in precisely machined components. The 1.5mm hex drive offers superior torque transmission compared to Phillips alternatives, minimizing installation time and tool wear in production environments.

Specification Summary & Compliance

This M2.5 x 0.45mm flat head screw features Class 6g thread fit per metric standards with coarse thread spacing for optimal engagement. The 16mm length includes 11mm minimum thread length for secure fastening. Manufactured to Class 10.9 strength grade with Rockwell C32 hardness verification. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.