S-91900A914 6-32 x 1 1/2" ASME B18.3 Tamper-Resistant Torx Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with specialized Torx drive requiring matching tools, preventing unauthorized access in secure installations
• Exceptional corrosion resistance through 18-8 stainless steel construction and passivated surface treatment for long-term reliability in harsh environments
• Precise thread engagement with Class 3A fit and UNC coarse threading ensuring secure fastening and vibration resistance
• High strength performance delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications
• Optimized head design featuring rounded button profile providing smooth finished appearance while maximizing drive engagement
• Full threading capability along the entire 1-1/2" length for maximum grip and load distribution across connected materials
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards for global industrial use

Professional Applications & Engineering Value

These tamper-resistant Torx screws provide critical security solutions for industrial equipment, public infrastructure, and electronic enclosures where unauthorized access poses significant risks. The 18-8 stainless steel composition combined with passivated finish delivers exceptional resistance to corrosion, chemicals, and environmental degradation, making them ideal for outdoor applications, marine environments, and chemical processing facilities. The Class 3A thread fit with UNC coarse threading ensures rapid installation and reliable performance in vibration-prone applications, while the T10 drive system maintains tool engagement integrity through repeated maintenance cycles. The fully threaded 1-1/2" length provides maximum holding power in thick assemblies, distributing clamping force evenly across the entire fastened joint.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with Class 3A thread fit precision and UNC (Unified National Coarse) thread form. Complies with ASME B18.3 mechanical specifications for socket cap screws. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) standards for chemical safety. The 18-8 stainless steel material provides consistent mechanical properties with 70,000 psi tensile strength and Rockwell B70 hardness throughout the fastener.