S-90696A231 1/2"-20 x 3 3/4" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
• Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress conditions.
• Precise Class 3A thread fit guarantees secure, vibration-resistant assemblies with minimal risk of loosening.
• High hardness rating (Rockwell B70) provides excellent wear resistance and durability.
• Secure hex drive installation with a 3/8" drive size for high torque application and easy assembly.
• Fine thread spacing offers improved adjustment precision and superior clamping force.
• Compliance with major standards including ASME B18.3, RoHS 3, and REACH for assured quality and safety.

Professional Applications & Engineering Value

This Socket Head Cap Screw is engineered for demanding applications where precision and reliability are non-negotiable. The 18-8 Stainless Steel material provides excellent resistance to corrosion and oxidation, making it suitable for use in chemical processing, marine, and outdoor equipment. The 1/2"-20 UNF fine thread with a Class 3A fit ensures tight, secure fastening in high-vibration environments such as machinery, automotive assemblies, and aerospace components. The partially threaded design allows for unthreaded shank sections to act as dowels, providing precise alignment and shear resistance. The 3/8" hex drive facilitates easy installation with standard tools, reducing assembly time while maintaining high clamp load integrity.

Specification Summary & Compliance

This screw features a 1/2"-20 UNF thread with a Class 3A precision fit, ensuring tight tolerances and reliable performance. It is manufactured in accordance with ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards.