S-95635A427 10-32 x 3/4" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Superior tamper resistance with a specialized hex drive that deters unauthorized removal in secure environments.
• Excellent corrosion resistance thanks to the 18-8 Stainless Steel material and passivated finish, ensuring long-term reliability in harsh conditions.
• High mechanical strength and durability with a tensile strength of 70,000 psi and Rockwell B70 hardness for demanding applications.
• Precise and secure fastening achieved through a Class 3A thread fit and fine UNF thread, minimizing the risk of loosening under vibration.
• Full threading for maximum grip along the entire 3/4" length, providing consistent holding power across the fastened materials.
• Low-profile, rounded button head design for a finished appearance and reduced snagging in assembled products.
• Compliance with major industrial standards including ASME B18.3, ensuring quality and interoperability in professional settings.

Professional Applications & Engineering Value

This 10-32 UNF screw is engineered to address critical needs in industrial and security-focused applications. The combination of 18-8 Stainless Steel and a passivated finish provides exceptional resistance to rust and corrosion, making it ideal for use in outdoor equipment, marine environments, or facilities with high humidity. The tamper-resistant hex drive is a key security feature, preventing casual disassembly in public infrastructure, electronic enclosures, and machinery where vandalism or unauthorized access is a concern. Its fine thread spacing and Class 3A thread fit ensure a tight, precise connection that is less likely to vibrate loose, a common failure point in dynamic systems. The rounded button head offers a smooth profile that is both aesthetically pleasing and functionally safe, reducing the risk of injury or damage to surrounding components.

Specification Summary & Compliance

This screw features a 10-32 UNF thread with a Class 3A precision fit for high-strength applications. It is manufactured from 18-8 Stainless Steel with a passivated surface treatment. The product is fully compliant with the ASME B18.3 standard for dimensional and mechanical requirements. It also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming it is free of hazardous substances and suitable for use in regulated markets.