S-92198A646 3/8"-16 x 5 1/2" 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, ideal for harsh industrial environments
- Exceptional mechanical strength with 80,000 psi tensile strength and Rockwell B70 hardness for heavy-duty applications
- Reliable fastening performance through UNC coarse threading and Class 2A thread fit ensuring secure connections
- Easy installation and removal with external hex drive and standard 9/16" head width for common tools
- Optimized load distribution with partially threaded design reducing stress concentration points
- Regulatory compliance assurance meeting ASME B18.2.1 standards and environmental regulations
- Versatile 5-1/2" length providing ample engagement for various material thicknesses
Professional Applications & Engineering Value
This 3/8"-16 UNC hex head screw delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition provides inherent protection against rust and chemical degradation, making it ideal for marine, chemical processing, and outdoor infrastructure applications. The partially threaded design concentrates the thread engagement where it's most effective, preventing thread damage during installation while maintaining 80,000 psi tensile strength for demanding structural connections. The external hex drive and coarse UNC threading ensure rapid installation and reliable performance in vibration-prone environments, while the substantial 5-1/2" length accommodates thick assemblies commonly encountered in heavy machinery, construction, and industrial equipment manufacturing.
Specification Summary & Compliance
This heavy-duty hex head screw features precise Class 2A thread fit with 3/8"-16 UNC coarse threading and right-hand thread direction. Manufactured to ASME B18.2.1 specifications with Rockwell B70 hardness and 80,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
