S-98164A469 3/8"-16 x 1/2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws
Stainless Steel Button Head Hex-Drive 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 corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and chemical exposure
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing capability
- Precise thread engagement with Class 3A fit and UNC coarse threads, ensuring secure fastening and vibration resistance
- Enhanced durability from the passivated finish, which improves surface hardness and extends service life
- Efficient installation using a standard 7/32" hex drive, allowing for quick assembly with common tools
- Full threading design providing consistent grip along the entire 1/2" length for uniform clamping force
- Regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for safe, quality-assured industrial use
Professional Applications & Engineering Value
Engineered for demanding settings, this 3/8"-16 UNC rounded head screw in 316 Stainless Steel addresses critical challenges like corrosion-induced failure and mechanical stress. The passivated finish enhances resistance to pitting and oxidation, making it suitable for marine, chemical processing, and food-grade equipment where moisture and aggressive agents are present. Its Class 3A thread fit and coarse threading reduce cross-threading risks and maintain integrity under dynamic loads, while the hex drive and button head profile facilitate access in confined spaces. Ideal for structural assemblies, machinery, and outdoor installations, this fastener ensures long-term reliability without frequent maintenance.
Specification Summary & Compliance
This product adheres to ASME B18.3 specifications, with precise Class 3A thread fit and UNC coarse thread standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability. Dimensions include a 0.656" head diameter, 0.375" thread diameter, and 1/2" length, all manufactured to consistent industrial tolerances for repeatable performance.
