S-99926A134 10-32 x 1 1/2" Stainless Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh industrial environments.
• Exceptional thread engagement and vibration resistance due to Class 3A thread fit and UNF fine threading, providing secure, precise assemblies.
• High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness, preventing stripping and deformation under load.
• Flush, professional installation enabled by the 100° countersink angle and undercut flat head profile, ideal for aerodynamic or smooth-surface applications.
• Secure, high-torque driving with the 3/32" hex drive, reducing cam-out risk and enabling efficient installation in confined spaces.
• Optimized weight and material use through partial threading, offering controlled clamping force without unnecessary thread length.
• Global compliance assurance with RoHS 3 and REACH regulations, guaranteeing safety and environmental standards for international supply chains.

Professional Applications & Engineering Value

This 10-32 UNF flat head screw is engineered to address critical challenges in precision assembly and industrial equipment. The 18-8 stainless steel material, combined with a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it ideal for aerospace, electronics, and marine applications where corrosion can compromise integrity. The Class 3A thread fit and fine UNF threading ensure minimal backlash and superior vibration resistance, crucial for dynamic load environments. The undercut flat head and 100° countersink angle allow for a seamless, flush mount, eliminating protrusions in sensitive machinery or consumer products. With a 70,000 psi tensile strength, it reliably maintains joint integrity under stress, reducing maintenance cycles and enhancing operational uptime.

Specification Summary & Compliance

This screw adheres to UNF (Unified National Fine) thread standards with a Class 3A thread fit for high precision. Dimensions include a 10-32 thread size, 1 1/2" length, and 0.411" head diameter. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free of hazardous substances. The partially threaded design and Rockwell B70 hardness further confirm its suitability for demanding technical specifications.