S-95635A240 10-24 x 3/8" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with specialized 5/32" hex drive that deters unauthorized removal, ideal for securing high-value equipment and public infrastructure.
• Exceptional corrosion resistance thanks to the 18-8 Stainless Steel construction and passivated finish, ensuring long-term reliability in harsh or outdoor environments.
• High mechanical strength and durability with a 70,000 psi tensile strength and Rockwell B70 hardness, providing reliable performance under stress and vibration.
• Precise and secure fastening achieved with a Class 3A thread fit and coarse UNC threading, enabling easier alignment and a tighter, more vibration-resistant hold.
• Streamlined, low-profile design of the rounded button head reduces snagging, improves safety, and offers an aesthetically clean finish.
• Full compliance with major industry standards including ASME B18.3, ensuring dimensional consistency, and environmental regulations like RoHS 3 and REACH.
• Versatile fully threaded shank allows for maximum grip length adjustment, making it suitable for a wide range of material thicknesses.

Professional Applications & Engineering Value

This 10-24 UNC 3/8" Tamper-Resistant Rounded Head Screw is engineered to solve critical challenges in security and maintenance. Its 18-8 Stainless Steel material and passivated finish provide a robust defense against corrosion, making it ideal for outdoor fixtures, marine hardware, and chemical processing equipment where moisture and corrosive agents are a constant threat. The tamper-resistant hex drive is a key security feature, preventing casual vandalism or unauthorized access in public spaces, transit systems, and secured enclosures. The combination of a Class 3A thread fit and coarse thread spacing ensures rapid installation and a secure, vibration-proof connection in metals and plastics, reducing maintenance intervals and improving overall assembly integrity.

Specification Summary & Compliance

This screw features a 10-24 UNC thread with a Class 3A fit for high precision. It is manufactured to meet the dimensional requirements of the ASME B18.3 standard. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in various markets.