S-92186A568 5/8"-18 x 4" ASME B18.2.1 Super-Corrosion-Resistant 316 Stainless Steel Hex Head Screws
Super-Corrosion-Resistant 316 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 316 stainless steel construction, ideal for harsh environments and chemical exposure
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity and structural integrity in demanding applications
- Fine UNF threading (5/8"-18) provides enhanced vibration resistance and superior clamping force compared to coarse threads
- Class 2A thread fit guarantees consistent, precise assembly with standard nuts while maintaining easy installation
- Partially threaded design allows for optimal grip on specific sections while reducing weight and material usage
- External hex drive with 15/16" head width enables high-torque installation using standard tools without stripping
- Rockwell B70 hardness rating delivers excellent durability and wear resistance for long-term performance
Professional Applications & Engineering Value
This 316 stainless steel hex head screw delivers exceptional engineering value in corrosive and high-stress environments. The UNF fine threading maintains secure fastening under vibration, making it ideal for machinery, marine equipment, and chemical processing applications where thread integrity is critical. The partially threaded design concentrates clamping force precisely where needed, preventing joint loosening while reducing material stress. With its external hex drive and standardized dimensions, installation is efficient using common industrial tools. The combination of 70,000 psi tensile strength and corrosion-resistant 316 stainless steel ensures reliable performance in demanding industrial settings, from structural assemblies to equipment manufacturing.
Specification Summary & Compliance
Manufactured to ASME B18.2.1 specifications with Class 2A thread fit ensuring precise dimensional accuracy and interchangeability. The 5/8"-18 UNF fine thread maintains standardized spacing for consistent performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance compliance. The inch system measurements guarantee compatibility with North American industrial standards and replacement parts.
