S-90517A411 10-32 x 3/8" ASME B18.3 Tamper-Resistant Hex Drive Flat Head Screws
Tamper-Resistant Hex Drive Flat Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior tamper-resistance with specialized hex drive design to prevent unauthorized access in sensitive installations
- Exceptional corrosion resistance through 18-8 stainless steel construction and passivated surface treatment
- High-strength performance delivering 70,000 psi tensile strength for demanding industrial applications
- Precise thread engagement with Class 3A fine thread fit ensuring secure, vibration-resistant fastening
- Optimized flush mounting featuring 82° countersink angle and standard flat head profile for seamless surface integration
- Enhanced durability with Rockwell B55 hardness maintaining structural integrity under repeated use
- Full-threaded design providing maximum grip length and holding power throughout the entire fastener
Professional Applications & Engineering Value
These 10-32 UNF flat head tamper-resistant hex screws solve critical security and reliability challenges in industrial environments. The 18-8 stainless steel material combined with passivated finish creates exceptional resistance to corrosion and chemical exposure, making them ideal for harsh operating conditions. The tamper-resistant hex drive prevents unauthorized tampering in public facilities, electrical enclosures, and machinery where security is paramount. With fine thread spacing and Class 3A thread fit, these screws deliver superior vibration resistance and precise alignment in precision assemblies. The 82° countersink angle ensures flush mounting in critical applications where protrusion cannot be tolerated, while the fully threaded design maximizes load distribution across the entire engagement length.
Specification Summary & Compliance
Manufactured to exacting standards with Class 3A thread fit precision and UNF fine thread specifications. Complies with ASME B18.3 dimensional requirements, ensuring interchangeability and reliability across industrial applications. Meets RoHS 3 (2015/863/EU) compliance for restricted substance control and REACH (EC 1907/2006) regulations for chemical safety. Features include 10-32 thread size, 3/8" length, 5/32" tamper-resistant hex drive, and 0.411" head diameter, all manufactured to industrial-grade specifications for consistent performance.
