S-91870A734 10-24 x 3/4" ASME B18.3 Tamper-Resistant Torx Plus Stainless Steel Flat Head Screws
Tamper-Resistant Torx Plus 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
- Enhanced tamper resistance with Torx Plus IPR25 drive for secure installations in high-security environments
- Superior corrosion resistance from 18-8 stainless steel construction and passivated finish, ideal for harsh industrial conditions
- High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
- Precise Class 3A thread fit provides smooth engagement and reduces the risk of cross-threading
- Full threading along the 3/4" length offers maximum grip and uniform stress distribution
- Standard 82° countersink angle allows for flush mounting and clean aesthetic finishes
- Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for professional use
Professional Applications & Engineering Value
This 10-24 UNC flat head screw is engineered to address critical challenges in industrial and security-focused applications. The 18-8 stainless steel material, combined with a passivated finish, provides exceptional resistance to rust and chemical exposure, making it suitable for outdoor equipment, marine hardware, and chemical processing plants. The tamper-resistant Torx Plus drive (IPR25) deters unauthorized access, which is vital for public infrastructure, electrical enclosures, and machinery requiring controlled maintenance. Its fully threaded design and Class 3A thread fit ensure tight, reliable fastening in metals and composites, reducing loosening from vibration. These features make it an ideal choice for engineers seeking durability, security, and compliance in demanding environments.
Specification Summary & Compliance
This screw adheres to ASME B18.3 standards for dimensional accuracy and performance. The UNC coarse thread with Class 3A fit ensures precise threading and ease of assembly. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety for use in products without hazardous substances. Additional specifications include a 0.411" head diameter, 82° countersink angle, and Rockwell B70 hardness, providing consistent quality for industrial fastener applications.
