S-95635A387 8-32 x 1" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with a specialized 5/32" hex drive that deters unauthorized removal, ideal for public or high-security installations.
• Exceptional corrosion resistance thanks to the 18-8 Stainless Steel material and passivated finish, ensuring long-term reliability in harsh environments.
• High mechanical strength and durability with a 70,000 psi tensile strength and Rockwell B70 hardness, providing reliable performance under stress.
• Precise and secure fastening from the Class 3A thread fit and coarse UNC threading, offering excellent grip and vibration resistance.
• Full threading for maximum engagement along the entire 1" length, allowing for versatile application depths and a stronger hold.
• Low-profile, rounded button head design for a finished appearance and reduced snagging, suitable for applications where a smooth surface is preferred.
• Compliance with major industrial standards including ASME B18.3, RoHS 3, and REACH, ensuring product safety and environmental responsibility.

Professional Applications & Engineering Value

This 8-32 UNC thread screw with a tamper-resistant hex drive is engineered to solve critical challenges in industrial maintenance, public infrastructure, and security-sensitive assemblies. The 18-8 Stainless Steel construction, enhanced by a passivated finish, provides robust defense against oxidation and chemical exposure, making it ideal for outdoor, marine, or chemical processing equipment. The Class 3A thread fit and coarse thread spacing ensure quick installation and superior resistance to loosening under vibration, a common issue in machinery and transportation applications. Its fully threaded design allows for adjustable clamping force, while the rounded button head offers a safe, snag-free profile for consumer-facing products. By integrating tamper-proof security with high-strength industrial screw performance, this fastener reduces maintenance frequency and prevents unauthorized access, delivering long-term engineering value.

Specification Summary & Compliance

This screw features a Class 3A thread fit for precise dimensional accuracy and a UNC coarse thread profile. It is manufactured in compliance with the ASME B18.3 standard and meets environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances. The specified tensile strength of 70,000 psi and Rockwell B70 hardness confirm its adherence to high mechanical performance criteria.