S-92210A178 3/8"-16 x 3 1/4" ASME B18.3, ASTM F879 Stainless Steel Hex Drive Flat Head Screws
Stainless Steel Hex Drive 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
- Exceptional corrosion resistance with 18-8 Stainless Steel and passivated finish for long-term reliability in harsh environments.
- Superior holding power from 70,000 psi tensile strength and Rockwell B55 hardness, ideal for heavy-duty applications.
- Precise, secure fastening with Class 3A thread fit and UNC coarse threads, reducing cross-threading risks.
- High-torque installation capability via the 7/32" hex drive, allowing for efficient assembly with standard tools.
- Flush, low-profile seating with the standard flat head and 82° countersink angle for smooth surface finishes.
- Full-length threading ensures maximum grip along the entire 3 1/4" length for uniform load distribution.
- Regulatory peace of mind with compliance to ASME B18.3, RoHS 3, and REACH standards for safe, quality-assured use.
Professional Applications & Engineering Value
Engineered to address critical industrial fastening challenges, these 3/8"-16 UNC flat head screws provide a robust solution for applications demanding high strength and corrosion resistance. The 18-8 Stainless Steel construction, enhanced by a passivated finish, effectively combats oxidation and chemical exposure in sectors like machinery, marine, and chemical processing. The hex drive design enables high-torque installation without slippage, while the Class 3A thread fit and coarse thread spacing ensure quick, reliable assembly in materials prone to vibration. Ideal for securing components in heavy-duty equipment and structural frameworks, these screws minimize maintenance needs and extend service life, delivering consistent performance under stress.
Specification Summary & Compliance
This product adheres to precise dimensional standards, including Class 3A thread fit and UNC coarse threads with a diameter of 0.375" and length of 3 1/4". Manufactured in accordance with ASME B18.3 specifications, it ensures reliable performance in industrial settings. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting environmental and safety standards.
