S-91900A194 8-32 x 1/2" ASME B18.3 Tamper-Resistant Torx Stainless Steel Button Head Screws
Tamper-Resistant Torx Stainless Steel Button 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
- Tamper-resistant T15 Torx drive prevents unauthorized access in security-sensitive applications
- 18-8 stainless steel construction provides excellent corrosion resistance and durability in harsh environments
- 70,000 psi tensile strength ensures reliable performance under high-stress conditions
- Class 3A thread fit with UNC coarse threading delivers superior engagement and vibration resistance
- Passivated surface treatment enhances corrosion protection while maintaining material integrity
- Fully threaded 1/2" length offers maximum fastening capability across the entire shank
- Rounded button head design provides a finished appearance while minimizing snagging hazards
Professional Applications & Engineering Value
These 18-8 stainless steel rounded head screws with tamper-resistant Torx drive address critical security and reliability challenges in industrial settings. The combination of Class 3A UNC coarse threading and fully threaded design ensures maximum thread engagement and superior vibration resistance in machinery, electronic enclosures, and public infrastructure. The passivated finish on the stainless steel material provides enhanced corrosion protection for outdoor applications or harsh environments where moisture and chemicals are present. With their 70,000 psi tensile strength and Rockwell B70 hardness, these security screws maintain integrity under substantial mechanical stress while the rounded button head profile eliminates sharp edges that could damage wiring or pose safety risks in accessible locations.
Specification Summary & Compliance
This 8-32 UNC thread screw features precise Class 3A thread fit tolerances with coarse thread spacing and right-hand thread direction. Manufacturing complies with ASME B18.3 standards for dimensional consistency and performance reliability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for industrial components.
