S-99926A115 8-32 x 5/16" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 Stainless Steel construction and passivated finish, ensuring long-term reliability in harsh environments.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness, providing reliable performance under high-stress conditions.
• Precise, secure fastening achieved with Class 3A thread fit and UNC coarse thread, minimizing the risk of loosening in demanding applications.
• Flush, low-profile installation enabled by the undercut flat head design and 100° countersink angle, ideal for applications requiring a smooth surface finish.
• Efficient installation and removal with the 5/64" hex drive, allowing for high torque application and reducing assembly time.
• Optimized thread engagement through partial threading, providing controlled clamping force where needed.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring suitability for global industrial supply chains.

Professional Applications & Engineering Value

This 8-32 UNC Flat Head Screw is engineered to address critical challenges in industrial assembly, where corrosion resistance, high tensile strength, and precise fit are paramount. Manufactured from 18-8 Stainless Steel with a passivated finish, it effectively resists oxidation and chemical degradation, making it ideal for machinery, electronic enclosures, and outdoor equipment. The Class 3A thread fit and coarse UNC thread ensure tight, reliable connections that withstand vibration and dynamic loads. The undercut flat head profile and 100° countersink angle allow for a seamless finish, preventing snagging and improving aesthetics in visible applications. Its hex drive facilitates quick, secure installation, reducing labor time and enhancing productivity on the production line.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a precise Class 3A thread fit, ensuring dimensional accuracy and interchangeability. Key specifications include a 5/16" length, 8-32 thread size, and partial threading. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environmentally conscious industrial and electronic applications without hazardous substances.