S-90696A233 1/2"-20 x 5 1/2" ASME B18.3 18-8 Stainless Steel Socket Head Screws
18-8 Stainless Steel Socket 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 load-bearing capability with 70,000 psi tensile strength for demanding applications
- Precise thread engagement through Class 3A fit, ensuring reliable fastening and vibration resistance
- Enhanced torque transmission with 3/8" hex drive and standard socket head profile
- Optimized for fine-thread applications with UNF 1/2"-20 threading, providing superior clamping force
- Versatile partial threading allowing both threaded and unthreaded sections for flexible installation
- Full regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for global acceptance
Professional Applications & Engineering Value
Engineered for high-stress industrial applications, these 18-8 stainless steel socket head cap screws deliver exceptional performance in machinery, automotive, and heavy equipment assembly. The Class 3A thread fit combined with UNF fine threading provides superior vibration resistance and precise clamping force distribution, critical for maintaining structural integrity in dynamic environments. The Rockwell B70 hardness ensures excellent wear resistance, while the 3/8" hex drive allows for high-torque installation without stripping. These partially threaded fasteners offer installation flexibility where both threaded engagement and smooth shank sections are required, making them ideal for precision engineering applications demanding both strength and corrosion resistance.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit precision and UNF 1/2"-20 fine thread spacing. The inch-system fasteners feature Rockwell B70 hardness and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance for industrial applications.
