S-92196A390 1/2"-20 x 2 1/2" 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 industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precise Class 3A thread fit provides superior engagement and reduces the risk of cross-threading during installation
• Fine UNF thread spacing offers better adjustment control and improved clamping force distribution
• Rockwell B70 hardness delivers excellent wear resistance and maintains thread integrity through multiple installations
• 3/8" hex drive design allows for high torque application and secure installation in confined spaces
• Partially threaded configuration provides optimal grip length while minimizing unnecessary thread engagement areas

Professional Applications & Engineering Value

This 1/2"-20 UNF Socket Head Cap Screw delivers critical performance advantages in demanding industrial applications where reliability and precision are paramount. The 18-8 Stainless Steel composition provides excellent corrosion resistance for machinery exposed to moisture, chemicals, or outdoor elements, while the Class 3A thread fit ensures precise mating with tapped holes, reducing assembly time and preventing thread damage. The fine thread spacing offers superior vibration resistance in dynamic applications such as automotive assemblies, industrial equipment, and precision machinery. The socket head design with 3/8" hex drive enables high-torque installation in space-constrained applications, making it ideal for machine tools, manufacturing equipment, and heavy-duty structural connections where access is limited but strength requirements are high.

Specification Summary & Compliance

This socket head cap screw features precision Class 3A thread fit with 1/2"-20 UNF fine threads and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications for dimensional accuracy and performance standards. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety, ensuring environmental responsibility and workplace safety in industrial applications.