S-91870A712 6-32 x 1/4" ASME B18.3 Tamper-Resistant Torx Plus Stainless Steel Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with specialized Torx Plus IPR10 drive that prevents unauthorized access in secure environments
• Superior corrosion protection through 18-8 stainless steel construction with passivated surface treatment for extended service life
• Reliable fastening performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Optimized flush mounting featuring undercut flat head design with 82° countersink angle for seamless surface integration
• Precision threading compatibility with Class 2A UNC coarse threads ensuring consistent engagement and vibration resistance
• Full regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
• Complete thread coverage along the 1/4" length provides maximum grip strength in thin materials

Professional Applications & Engineering Value

These 6-32 UNC flat head screws with tamper-resistant Torx Plus drives address critical security and reliability challenges in industrial settings. The 18-8 stainless steel composition, enhanced by passivated finish, delivers exceptional resistance to corrosion and chemical exposure, making them ideal for harsh environments including outdoor equipment, marine applications, and chemical processing facilities. The undercut flat head profile with 82° countersink ensures flush mounting without protrusion, preventing snagging while maintaining aesthetic appeal in consumer products and architectural elements. The specialized IPR10 drive system provides superior torque transmission while deterring tampering in public infrastructure, security panels, and access control systems. With Class 2A thread fit and coarse thread spacing, these screws offer rapid installation and reliable performance in materials ranging from metals to plastics, reducing assembly time while maintaining joint integrity under vibration and dynamic loads.

Specification Summary & Compliance

These security screws maintain precise Class 2A thread fit tolerances with UNC coarse thread spacing for consistent performance. Manufacturing adheres to ASME B18.3 specifications ensuring dimensional accuracy and mechanical properties. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations guarantees safe use across various industries. The combination of 82° countersink angle and fully threaded design provides optimal clamping force distribution while the right-hand thread direction follows industry standards for intuitive installation.