S-90517A414 10-32 x 1" ASME B18.3 Tamper-Resistant Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper resistance with a specialized hex drive that deters unauthorized removal in high-security environments.
• Superior corrosion resistance thanks to 18-8 Stainless Steel construction and a passivated finish, ensuring long-term reliability in harsh conditions.
• High tensile strength of 70,000 PSI and Rockwell B55 hardness for reliable performance under significant mechanical stress.
• Precision Class 3A thread fit and UNF fine threading for secure, vibration-resistant fastening in critical assemblies.
• Full threading along the 1" length provides maximum grip and load distribution across the entire fastener.
• Standard 82° countersink angle on the flat head allows for a flush, professional finish that minimizes protrusion.
• Compliance with major industry standards including ASME B18.3, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 10-32 UNF flat head tamper-resistant hex screw is engineered to address critical challenges in industrial and security-focused applications. The combination of 18-8 Stainless Steel and a passivated finish provides exceptional resistance to corrosion and chemical exposure, making it ideal for outdoor equipment, marine hardware, and facilities with high humidity. The tamper-resistant hex drive is specifically designed to prevent unauthorized access in public infrastructure, electrical enclosures, and machinery requiring controlled maintenance. With a fine thread spacing and Class 3A thread fit, it ensures tight, reliable fastening that resists loosening under vibration, common in automotive, aerospace, and precision manufacturing. Its fully threaded design and flat head profile offer a secure, low-profile installation, essential for applications where safety and aesthetics are paramount.

Specification Summary & Compliance

This screw features a 10-32 UNF thread size with Class 3A thread fit for high precision and a right-hand thread direction. It is manufactured in accordance with ASME B18.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it meets stringent industry and safety standards for global use.