S-90696A218 7/16"-20 x 3 1/2" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 Stainless Steel construction, ideal for harsh industrial environments and outdoor applications.
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and prevents fastener failure.
• Precise Class 3A thread fit provides excellent engagement and vibration resistance in critical assemblies.
• Fine UNF threads offer superior clamping force and improved adjustment accuracy compared to coarse threads.
• Hex socket drive design allows for high torque application and installation in confined spaces.
• Rockwell B70 hardness delivers exceptional wear resistance and long-term durability.
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH ensures material quality and environmental safety.

Professional Applications & Engineering Value

This socket head cap screw in 18-8 Stainless Steel is engineered to solve critical challenges in demanding industrial applications. The combination of fine UNF threads and Class 3A thread fit provides exceptional vibration resistance, preventing loosening in machinery and equipment subjected to constant motion. The hex drive design enables high torque installation, ensuring secure fastening in automotive, aerospace, and manufacturing assemblies where space constraints exist. The partially threaded configuration allows for precise clamping force distribution, making it ideal for securing components that require both fixed positioning and adjustable tension. With its corrosion-resistant properties, this fastener maintains integrity in chemical processing, marine, and food processing equipment where moisture and corrosive agents are present.

Specification Summary & Compliance

This socket head cap screw features precision 7/16"-20 UNF fine threads with Class 3A thread fit for superior dimensional accuracy. Manufacturing follows ASME B18.3 specifications, ensuring consistent quality and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and material restrictions adherence for global industrial use.