S-95635A242 10-24 x 1/2" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with specialized hex drive requiring matching security bits, preventing unauthorized access in sensitive installations.
• Exceptional corrosion resistance from 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh industrial environments.
• High-load bearing capability with 70,000 psi tensile strength and Rockwell B70 hardness, providing reliable performance under mechanical stress.
• Precise, secure fastening through Class 3A thread fit and UNC coarse threading, reducing cross-threading risks and ensuring vibration resistance.
• Broad regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards, guaranteeing safety and environmental responsibility.
• Full-thread engagement along the 1/2" length, maximizing grip strength and distribution across connected materials.
• Low-profile rounded head design offering a finished appearance while minimizing snagging in confined spaces.

Professional Applications & Engineering Value

Engineered for industrial security applications, this 18-8 stainless steel rounded head screw addresses critical needs in public infrastructure, machinery guarding, and electronic enclosures where tampering poses operational risks. The tamper-resistant hex drive deters casual disassembly without specialized tools, while the passivated finish enhances the innate corrosion resistance of stainless steel, making it suitable for outdoor or chemically exposed settings. With a Class 3A thread fit and coarse UNC threading, installation is streamlined with reduced galling, and the 70,000 psi tensile strength ensures joints remain secure under dynamic loads. These features collectively reduce maintenance frequency and prevent costly vandalism or unauthorized modifications in high-security fastening scenarios.

Specification Summary & Compliance

This fastener adheres to ASME B18.3 dimensional and mechanical specifications, with Class 3A thread fit ensuring tight tolerances for secure assembly. The 10-24 UNC coarse thread and fully threaded 1/2" length provide consistent engagement, while material and finish comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted substances for safe use across global markets.