S-91870A831 10-32 x 3/4" ASME B18.3 Tamper-Resistant Torx Stainless Steel Flat Head Screws
Tamper-Resistant Torx Stainless Steel 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 T25 Torx drive for enhanced security in high-risk environments
- Excellent corrosion protection through 18-8 stainless steel construction and passivated surface treatment
- Precise thread engagement with Class 3A UNF fine threads ensuring reliable, vibration-resistant fastening
- Optimized flush mounting featuring standard 82° countersink angle for seamless surface integration
- High mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Full-threaded design providing maximum grip length and load distribution across the entire fastener
- Regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for critical applications where security and corrosion resistance are paramount, these 18-8 stainless steel flat head screws provide reliable fastening solutions for aerospace, electronics, and public infrastructure. The tamper-resistant T25 Torx drive prevents unauthorized access while the passivated finish enhances durability in harsh environments. With 10-32 UNF fine threading and Class 3A thread fit, these screws maintain precise alignment and vibration resistance in machinery, control panels, and security enclosures. The 82° countersink angle ensures flush mounting for safety and aesthetic requirements, making them ideal for applications demanding both security features and environmental compliance.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision. Features 10-32 UNF fine threads with full threading along the 3/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The passivated finish on 18-8 stainless steel provides additional corrosion protection while maintaining the material's inherent durability and strength characteristics.
