S-92198A688 5/16"-18 x 1 5/8" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel Hex 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 corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
- Reliable fastening performance through Class 2A thread fit and UNC coarse threading for easier assembly and vibration resistance
- Optimized torque transmission with external hex drive design and 1/2" head width for secure installation
- Versatile partial threading with 7/8" minimum thread length providing both gripping strength and clearance where needed
- Industry-standard compliance meeting ASME B18.2.1 specifications for consistent quality and interchangeability
- Environmental regulation adherence with RoHS 3 and REACH compliance for global market acceptance
Professional Applications & Engineering Value
This 5/16"-18 UNC hex head screw delivers exceptional engineering value through its 18-8 stainless steel composition, providing superior corrosion resistance that extends service life in demanding industrial environments. The coarse thread design ensures reliable performance in applications where vibration resistance and quick assembly are critical, while the partial threading offers optimal clamping force distribution. The external hex drive configuration allows for high-torque installation, making these industrial hex screws ideal for machinery, structural assemblies, and equipment manufacturing where 80,000 psi tensile strength is required to withstand substantial mechanical stresses without compromising joint integrity.
Specification Summary & Compliance
This hex head screw features precision Class 2A thread fit with 5/16"-18 UNC coarse threading and right-hand thread direction, manufactured to exact dimensional tolerances. The fastener complies with ASME B18.2.1 standards for dimensional consistency and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring restricted substance compliance for international industrial applications.
