S-91870A259 10-24 x 1 1/4" 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 Torx drive requiring T25 tools, preventing unauthorized access in secure environments
- Exceptional corrosion resistance through 18-8 stainless steel construction and passivated surface treatment for long-term reliability
- High mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications
- Precision thread engagement with Class 3A thread fit ensuring secure fastening and vibration resistance
- Optimized flush mounting with standard 82° countersink angle and flat head design for smooth surface finishes
- Full threading coverage across the 1-1/4" length providing maximum grip and load distribution
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These 10-24 UNC flat head screws with tamper-resistant Torx drive address critical security and reliability challenges in industrial settings. The 18-8 stainless steel material combined with passivated finish creates a robust barrier against corrosion, making them ideal for harsh environments where moisture or chemicals are present. The Class 3A thread fit and coarse thread spacing ensure rapid installation while maintaining superior holding power, reducing assembly time without compromising security. These fully threaded screws are particularly valuable in electronic enclosures, public infrastructure, and manufacturing equipment where both tamper-proof characteristics and corrosion resistance are essential for long-term operational integrity.
Specification Summary & Compliance
These screws feature precision 10-24 UNC threads with Class 3A thread fit for optimal engagement and consistent performance. Manufacturing adheres to ASME B18.3 specifications, ensuring dimensional accuracy and reliability. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming they meet the latest standards for restricted substances and chemical safety in industrial applications.
