S-95635A374 8-32 x 3/8" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with a specialized hex drive requiring unique tools, preventing unauthorized access in public or high-security areas.
• Superior corrosion resistance from 18-8 Stainless Steel and a passivated finish, ensuring long-term reliability in harsh or humid environments.
• High mechanical strength with a tensile strength of 70,000 psi and Rockwell B70 hardness, providing reliable performance under heavy loads and vibration.
• Precise and secure fastening due to the Class 3A thread fit and UNC coarse threading, offering excellent grip and reduced risk of cross-threading.
• Streamlined installation with a fully threaded design and right-hand thread direction, enabling quick and efficient assembly in various industrial applications.
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH, ensuring product safety, quality, and environmental responsibility for global supply chains.
• Durable and low-profile design featuring a rounded button head that minimizes snagging and provides a clean, finished appearance.

Professional Applications & Engineering Value

This 8-32 UNC thread screw is engineered to address critical challenges in industrial and security-focused applications. The 18-8 Stainless Steel construction, combined with a passivated finish, provides exceptional resistance to rust and corrosion, making it ideal for outdoor equipment, marine hardware, and chemical processing facilities. The tamper-resistant hex drive is a key feature for securing enclosures in public infrastructure, telecommunications, and electronic assemblies, deterring vandalism and unauthorized tampering. Its coarse threading and Class 3A fit ensure a tight, reliable hold in materials like metal and hard plastics, reducing the risk of loosening under dynamic stresses. These screws deliver consistent performance in demanding environments, from machinery assembly to security panels, where durability and tamper-proof characteristics are paramount.

Specification Summary & Compliance

This screw adheres to precise dimensional standards with a Class 3A thread fit and UNC coarse threading (8-32 size), ensuring high accuracy and interchangeability. It is manufactured in compliance with the ASME B18.3 specification for dimensional consistency and performance. The product is also certified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for hazardous substances. With full threading and a length of 3/8", it is designed for secure fastening in professional and industrial settings.