S-90288A833 10-32 x 1" ASME B18.6.3 Tamper-Resistant One-Way-Drive Stainless Steel Round Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish, ensuring long-term reliability in harsh environments
• Exceptional mechanical strength delivering 80,000 psi tensile strength and Rockwell B96 hardness for demanding load-bearing applications
• Precise thread engagement with Class 2A thread fit and UNF fine threading for secure fastening in precision assemblies
• Tamper-resistant design featuring one-way drive style to prevent unauthorized disassembly in security-sensitive installations
• Full thread coverage along the 1" length provides maximum grip and load distribution across the entire fastener
• Standard-compliant performance meeting ASME B18.6.3 specifications for consistent quality and dimensional accuracy
• Environmental compliance with RoHS 3 and REACH regulations for safe use across various industrial sectors

Professional Applications & Engineering Value

These 10-32 UNF rounded head screws deliver critical engineering advantages in applications where vibration resistance and tamper-proof security are paramount. The combination of 18-8 stainless steel with passivated finish creates a protective barrier against chemical exposure and atmospheric corrosion, making them ideal for outdoor equipment, marine components, and chemical processing machinery. The fine thread spacing and Class 2A thread fit ensure precise mating with corresponding UNF nuts and threaded holes, preventing loosening under dynamic loads. The rounded head profile with one-way drive provides both aesthetic appeal and functional security, particularly valuable in public infrastructure, transportation systems, and access control panels where unauthorized tampering must be prevented while maintaining clean visual lines.

Specification Summary & Compliance

Manufactured to exacting ASME B18.6.3 standards, these screws maintain precise dimensional tolerances with Class 2A thread fit for consistent performance. The UNF (Unified National Fine) thread form with 10-32 specification and right-hand threading ensures compatibility with standard industrial components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and restricted substance control. The fully threaded 1" length provides complete engagement capability, while the 0.359" head diameter and 0.137" head height deliver optimal clamping force distribution without compromising space constraints.