S-99926A107 6-32 x 5/16" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced thread reliability with Class 3A fit for precise, vibration-resistant assemblies
• Optimized flush mounting due to the 100° countersink angle and undercut flat head profile
• High mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Secure, non-slip installation enabled by the 5/64" hex drive for consistent torque application
• Environmental compliance assurance with RoHS 3 and REACH regulations, ensuring safe and sustainable use
• Versatile partial threading allowing flexibility in material grip and alignment during fastening

Professional Applications & Engineering Value

This 6-32 UNC flat head screw is engineered to address common industrial challenges such as material degradation and assembly failure. Crafted from 18-8 stainless steel with a passivated finish, it provides exceptional resistance to rust and chemical exposure, extending service life in machinery, electronics, and outdoor equipment. The coarse thread spacing and Class 3A thread fit ensure quick, secure fastening with minimal risk of cross-threading, while the undercut flat head and 100° countersink angle enable a flush, low-profile finish that prevents snagging and improves aesthetics. These features make it a reliable choice for industrial applications requiring durability, precision, and regulatory compliance.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Key dimensions include a 5/16" length, 0.138" thread diameter, and 5/64" hex drive size. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial use.