S-92185A512 1/4"-20 x 4 1/2" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws
Super-Corrosion-Resistant 316 Stainless Steel 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
- Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
- Superior thread reliability due to Class 3A fit, ensuring precise engagement and reduced risk of cross-threading
- Enhanced durability and strength from 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
- Optimized drive performance with hex socket design providing high torque transmission and strip-resistant installation
- Long-term environmental compliance meeting RoHS 3 and REACH standards for restricted substance control
- Improved corrosion protection through passivated surface finish, extending service life in corrosive conditions
- Versatile partial threading allowing both secure fastening and smooth shank alignment in assembled components
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 316 stainless steel socket head cap screws deliver exceptional performance where corrosion resistance and mechanical reliability are critical. The UNC coarse thread design ensures rapid assembly in production lines while maintaining Class 3A thread fit precision for vibration-resistant connections. The passivated finish provides an additional protective layer against chemical exposure, making these hex drive fasteners ideal for chemical processing equipment, marine hardware, and food processing machinery where frequent washdowns occur. The combination of 70,000 psi tensile strength and partial threading offers optimal clamp load distribution while allowing unthreaded sections to serve as precision alignment pins in assembled structures.
Specification Summary & Compliance
This 1/4"-20 UNC socket head cap screw features Class 3A thread fit per ASME B1.1 standards with coarse thread spacing and right-hand thread direction. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety. The 4 1/2" length includes 1" minimum thread length with partially threaded configuration, while mechanical properties meet 70,000 psi tensile strength and Rockwell B70 hardness specifications.
