S-94414A353 8-32 x 5/8" ASME B18.3, ASTM F835 Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance from black-oxide coating, extending service life in demanding industrial environments.
• Superior torque transmission and reduced cam-out with Torx Plus IP20 drive, ensuring secure fastening and tool longevity.
• Exceptional mechanical strength with 140,000 psi tensile strength and Rockwell C39 hardness for high-stress applications.
• Precise thread engagement and reliability due to Class 3A thread fit and fully threaded UNC coarse design.
• Flush, low-profile installation with standard 82° countersink angle, ideal for surfaces requiring a smooth finish.
• Broad regulatory compliance including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.
• Optimized for right-hand threading in standard assembly processes, improving installation efficiency.

Professional Applications & Engineering Value

These 8-32 UNC flat head screws are engineered to address common industrial challenges such as vibration loosening, material fatigue, and corrosive exposure. The black-oxide alloy steel construction provides a durable barrier against rust and wear, while the Torx Plus drive minimizes slippage during high-torque applications, reducing downtime and tool damage. With a fully threaded design and Class 3A thread fit, they ensure consistent clamping force and alignment in machinery, electronics, and automotive assemblies. The 82° countersink angle allows for seamless integration into angled surfaces, making them ideal for precision engineering where flush mounting is critical. These screws deliver reliable performance in heavy-duty environments, supported by their high tensile strength and compliance with industry standards.

Specification Summary & Compliance

This product adheres to Class 3A thread fit for precise dimensional accuracy under UNC coarse threading standards. Manufacturing and quality are governed by ASME B18.3 specifications, ensuring consistency and reliability. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming they are free from hazardous substances and safe for various industrial applications.