S-95635A391 8-32 x 1 1/2" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Maximum tamper resistance with specialized hex drive requiring unique tools, preventing unauthorized access in public or high-security installations
• Superior corrosion resistance from 18-8 stainless steel construction and passivated surface treatment, ensuring longevity in humid or chemical environments
• High-strength performance delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing in demanding applications
• Precision Class 3A thread fit providing tighter tolerances than standard fasteners for secure, vibration-resistant connections
• Low-profile button head design with rounded contours for flush mounting where clearance is limited and smooth aesthetics are required
• Full threading along 1-1/2" length enables maximum grip depth and adjustment flexibility in various material thicknesses
• Regulatory compliance assurance meeting ASME B18.3 specifications and environmental standards for global industrial use

Professional Applications & Engineering Value

Engineered for high-security industrial applications, these tamper-resistant hex button head screws solve critical challenges in public infrastructure, machinery guarding, and access control systems. The 18-8 stainless steel composition combined with passivated finish creates a robust barrier against corrosion and chemical exposure, significantly extending service life in harsh environments. The UNC coarse thread pattern with Class 3A fit ensures rapid installation and maintains connection integrity under vibration, while the 5/32" tamper-resistant drive deters casual interference without compromising installation efficiency. These fully threaded security screws provide reliable fastening in electronic enclosures, transportation equipment, and industrial machinery where unauthorized tampering could compromise safety or functionality.

Specification Summary & Compliance

This 8-32 x 1-1/2" button head screw features precision UNC coarse threads with Class 3A thread fit for superior engagement and vibration resistance. Manufacturing complies with ASME B18.3 dimensional standards, ensuring interchangeability and reliability. The fastener meets RoHS 3 (2015/863/EU) compliance for restricted hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, making it suitable for global industrial markets and environmentally conscious applications.