S-91205A194 8-32 x 1/2" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws
Alloy Steel Thread-Locking Socket 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
- Secure vibration-resistant locking with integrated Nylon Patch thread locker, maintaining performance from -70° to 250°F
- Exceptional tensile strength of 170,000 psi for heavy-duty applications requiring reliable load-bearing capability
- Superior corrosion resistance through Black-Oxide coating on Alloy Steel, extending service life in demanding environments
- Precise Class 3A thread fit ensuring tight tolerances and smooth assembly with reduced risk of cross-threading
- Optimized hex drive design with 9/64" socket for high torque transmission and reduced tool slippage
- Full thread engagement along the entire 1/2" length for maximum grip strength in various material thicknesses
- Industry-standard compliance meeting ASME B18.3 and ASTM A574 specifications for guaranteed interchangeability
Professional Applications & Engineering Value
Engineered for critical industrial fastening applications, these socket head cap screws combine Black-Oxide Alloy Steel construction with advanced Nylon Patch locking technology to solve common vibration-induced loosening problems in machinery, automotive assemblies, and precision equipment. The 8-32 UNC coarse thread design provides rapid installation while maintaining Class 3A thread fit precision for consistent clamping force. With 170,000 psi tensile strength and Rockwell C37 hardness, these fully threaded fasteners deliver reliable performance in high-stress environments where joint integrity is paramount, from manufacturing fixtures to aerospace components requiring secure fastening under thermal cycling conditions.
Specification Summary & Compliance
These socket head cap screws feature precision 8-32 UNC coarse threads with Class 3A fit tolerance, manufactured to ASME B18.3 specifications and ASTM A574 material standards. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. The Nylon Patch thread locker maintains effectiveness across the specified temperature range of -70° to 250°F while the Black-Oxide surface treatment provides consistent corrosion protection.
