S-92198A840 5/8"-11 x 20" 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
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and stress
- Rockwell B70 hardness provides excellent durability and resistance to wear
- Class 2A thread fit offers consistent, reliable assembly with standard mating components
- Partially threaded design with 1 3/4" minimum thread length allows for precise clamping control
- External hex drive and hex head enable easy installation with common tools
- Compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality and environmental safety
Professional Applications & Engineering Value
This 5/8"-11 UNC hex head screw delivers exceptional engineering value in demanding applications where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel material provides lasting protection against rust and chemical exposure, making it ideal for marine, chemical processing, and outdoor infrastructure projects. The coarse thread design ensures quick assembly and reduced cross-threading risks, while the partially threaded configuration offers optimal grip length for structural connections. With 80,000 psi tensile strength and Rockwell B70 hardness, this fastener maintains performance in high-vibration environments and heavy machinery applications, reducing maintenance frequency and downtime.
Specification Summary & Compliance
This hex head screw features 5/8"-11 UNC coarse threads with Class 2A thread fit for standard tolerance and compatibility. The 20" length and 1 3/4" minimum thread length provide versatile fastening solutions. Manufacturing complies with ASME B18.2.1 specifications, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting strict environmental and safety standards for industrial use.
