S-91870A153 6-32 x 1" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with a specialized Torx T10 drive, deterring unauthorized access in sensitive or public-facing equipment.
• Superior corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in harsh or humid industrial environments.
• High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness, providing dependable performance under stress and vibration.
• Secure and flush installation thanks to the flat head design with an 82° countersink angle, ideal for applications requiring a smooth surface finish.
• Reliable coarse threading (6-32 UNC) with Class 2A fit, offering quick assembly and reduced cross-threading risks in various materials.
• Full 1-inch threading ensures maximum grip and holding power along the entire fastener length for robust connections.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, guaranteeing safety and environmental responsibility.

Professional Applications & Engineering Value

These 6-32 UNC flat head screws are engineered to address critical challenges in industrial and security applications. The 18-8 Stainless Steel material provides excellent resistance to rust and oxidation, making them suitable for outdoor equipment, marine hardware, and chemical processing facilities where durability is paramount. The tamper-resistant Torx T10 drive prevents vandalism and unauthorized disassembly, which is essential for public infrastructure, electronic enclosures, and machinery requiring controlled access. With a coarse thread and Class 2A thread fit, these screws facilitate faster installation in metals and plastics while minimizing the risk of stripping. The fully threaded design and 82° countersink angle ensure a tight, flush fit in pre-drilled holes, enhancing both aesthetic appeal and functional security in assembled products.

Specification Summary & Compliance

This product adheres to precise dimensional and performance standards, including Class 2A thread fit for consistent engagement and UNC coarse threading per ASME specifications. It meets ASME B18.3 for dimensional accuracy and mechanical properties, ensuring interoperability and reliability. Environmental and safety compliance is confirmed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting sustainable and safe industrial practices.