S-91870A723 8-32 x 1" 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
- Superior tamper resistance with Torx Plus IPR20 drive for enhanced security in public or restricted-access applications
- Exceptional corrosion resistance from 18-8 stainless steel construction with passivated finish, ideal for harsh industrial environments
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B70 hardness for reliable load-bearing capability
- Precision thread engagement with Class 3A fit and UNC coarse threading ensuring vibration resistance and easy installation
- Flush mounting compatibility featuring standard 82° countersink angle for seamless integration into assembled surfaces
- Full-threaded design maximizing grip length and pull-out resistance across the entire 1" fastener length
- Regulatory compliance meeting ASME B18.3 specifications and environmental standards including RoHS 3 and REACH
Professional Applications & Engineering Value
Engineered for critical industrial security applications, these 8-32 UNC flat head screws address the dual challenges of unauthorized access and environmental degradation. The 18-8 stainless steel material with passivated finish provides superior protection against chemical exposure and atmospheric corrosion, while the tamper-resistant Torx Plus IPR20 drive system deters casual tampering in public infrastructure, electrical enclosures, and machinery guarding. The Class 3A thread fit with coarse thread spacing maintains clamping force under vibration, making these fully threaded fasteners ideal for permanent installations where disassembly should be restricted to authorized personnel. The standardized 82° countersink angle ensures proper seating in flat head applications while maintaining surface integrity.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNC coarse thread profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Thread dimensions conform to 8-32 UNC standards with right-hand thread direction and 1" length in the inch system of measurement.
