S-91900A199 8-32 x 1" 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 Torx T15 drive provides enhanced security against unauthorized removal in sensitive applications
- 18-8 stainless steel construction offers excellent corrosion resistance and durability in demanding environments
- Class 3A thread fit ensures precise, secure fastening with minimal risk of loosening
- Passivated finish significantly enhances corrosion protection for extended service life
- 70,000 psi tensile strength delivers reliable performance under high-stress conditions
- Rockwell B70 hardness maintains structural integrity and resists deformation during installation
- Coarse UNC threading enables faster installation and better performance in softer materials
Professional Applications & Engineering Value
These 8-32 UNC coarse thread screws with tamper-resistant Torx drive address critical security and reliability challenges in industrial applications. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to corrosion and chemical exposure, making them ideal for outdoor equipment, electronic enclosures, and public infrastructure where environmental factors threaten fastener integrity. The rounded head design with T15 drive prevents casual tampering while allowing authorized maintenance access, solving security concerns in public spaces, transportation systems, and sensitive equipment. The Class 3A thread fit ensures consistent clamping force and vibration resistance, reducing maintenance frequency and improving overall system reliability in mechanical assemblies and structural applications.
Specification Summary & Compliance
This security fastener features precision 8-32 UNC coarse threading with Class 3A thread fit for superior dimensional accuracy. Manufactured to ASME B18.3 specifications with complete RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring environmental responsibility and regulatory adherence. The 1" length with fully threaded design provides consistent engagement depth across various material thicknesses.
