S-96669A226 10-32 x 1/2" ASME B18.3 Sealing Tamper-Resistant Torx Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced Security & Tamper Resistance: Tamper-resistant Torx T25 drive prevents unauthorized removal, ideal for public or high-security installations.
• Superior Corrosion Resistance: Made from 18-8 Stainless Steel with a Passivated Finish for excellent durability in harsh environments.
• Reliable High-Pressure Sealing: Integrated Buna-N Rubber O-Ring creates a robust seal capable of withstanding pressures up to 1500 psi.
• Wide Operational Temperature Range: O-ring performs reliably in temperatures from -40°F to 225°F, suitable for various industrial conditions.
• Precision Thread Fit for Secure Fastening: Class 2A thread fit on the 10-32 UNF fine thread ensures consistent, vibration-resistant connections.
• Optimized Head Design for Flush Mounting: Undercut Flat Head with an 82° countersink angle allows for a smooth, flush finish in assembled products.
• High Tensile Strength for Demanding Applications: With a 70,000 psi tensile strength, this screw provides reliable mechanical performance in critical assemblies.

Professional Applications & Engineering Value

This 10-32 UNF Flat Head Screw is engineered to solve critical challenges in industrial assembly, particularly where security, sealing, and corrosion resistance are paramount. The combination of 18-8 Stainless Steel and a passivated finish provides exceptional resistance to rust and chemical exposure, making it ideal for outdoor equipment, marine applications, and chemical processing plants. The Tamper-Resistant Torx T25 drive ensures that fasteners remain secure in public infrastructure or sensitive machinery, preventing vandalism and unauthorized access. Furthermore, the integrated Buna-N rubber O-ring offers a dependable seal against leaks in fluid and gas systems, which is crucial for hydraulic systems, pneumatic controls, and pressurized enclosures. Its fine UNF threading and Class 2A fit guarantee precise engagement, reducing the risk of loosening under vibration and ensuring long-term reliability in dynamic operational environments.

Specification Summary & Compliance

This screw adheres to precise dimensional standards, featuring a 10-32 UNF thread with a Class 2A fit for consistent accuracy and ease of assembly. It is manufactured in compliance with the ASME B18.3 specification for socket cap screws, ensuring mechanical integrity and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free from hazardous substances and safe for use in regulated markets and environmentally conscious applications.