S-91870A180 8-32 x 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
- Enhanced tamper resistance with specialized Torx T15 drive, deterring unauthorized access in high-security environments
- Superior corrosion protection from 18-8 stainless steel and passivated finish, ensuring longevity in harsh industrial conditions
- High tensile strength of 70,000 psi and Rockwell B70 hardness for reliable performance in demanding applications
- Precise Class 2A thread fit with UNC coarse threading, enabling quick assembly and secure fastening
- Optimized 82° countersink angle with undercut flat head design, providing flush seating and reduced risk of material damage
- Full threading along the 1/4" length, ensuring maximum grip and uniform load distribution
- Compliance with ASME B18.3, RoHS 3, and REACH, meeting rigorous industry and environmental standards
Professional Applications & Engineering Value
Engineered for industrial and security-critical settings, these 8-32 UNC flat head screws address common challenges like tampering, vibration loosening, and environmental degradation. The 18-8 stainless steel construction, combined with a passivated finish, offers exceptional resistance to rust and chemicals, making them ideal for outdoor equipment, machinery, and electronic enclosures. The tamper-resistant Torx T15 drive prevents unauthorized disassembly, while the coarse UNC threading and Class 2A fit ensure rapid installation and stable connections in materials like metal and hardened plastics. These features collectively reduce maintenance needs and enhance operational safety in sectors such as manufacturing, aerospace, and public infrastructure.
Specification Summary & Compliance
This product adheres to ASME B18.3 specifications, with precise Class 2A thread fit and UNC coarse threading for consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. The screw features a 1/4" length, 82° countersink angle, and is fully threaded to meet industrial fastening requirements.
