S-91205A141 6-32 x 1/8" 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
- Superior vibration resistance with integrated nylon patch thread locker that prevents loosening under dynamic loads
- Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications
- Enhanced corrosion protection through black-oxide coating on alloy steel for extended service life
- Precision thread engagement with Class 3A fit for secure fastening and reduced risk of cross-threading
- Wide temperature compatibility from -70° to 250°F maintains locking performance across diverse environments
- Optimized drive efficiency with standard hex socket profile and 7/64" drive for secure tool engagement
- Full thread coverage along the entire 1/8" length provides maximum grip in shallow applications
Professional Applications & Engineering Value
These black-oxide alloy steel socket head cap screws with nylon patch locking deliver critical vibration resistance in demanding industrial environments. The 6-32 UNC coarse thread configuration combined with Class 3A thread fit ensures rapid assembly with exceptional clamping force retention. Engineered for precision equipment, automotive components, and electronic enclosures, these fasteners solve common challenges of fastener loosening under thermal cycling and mechanical stress. The fully threaded design maximizes engagement in limited-depth applications, while the hex socket drive provides reliable torque transmission without cam-out. Ideal for maintenance-critical assemblies where disassembly may be required, the reusable nylon patch maintains locking performance through multiple installation cycles.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread tolerance for precision fit. The UNC coarse thread spacing ensures compatibility with standard components. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Material certification to ASTM A574 ensures consistent mechanical properties including Rockwell C37 hardness and 170,000 psi tensile strength.
