S-92196A396 1/2"-20 x 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 long-term reliability
• Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress conditions without failure
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications
• Fine UNF threads (1/2"-20) offer improved load distribution and reduced risk of loosening compared to coarse threads
• Partially threaded design with 1 3/4" minimum thread length allows for optimal grip and alignment in varied material thicknesses
• 3/8" hex drive and standard socket head enable easy installation and high torque application with common tools
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations

Professional Applications & Engineering Value

These 18-8 Stainless Steel Socket Head Cap Screws are engineered to address common industrial challenges such as corrosion-induced failure and assembly instability. The fine UNF threads and Class 3A fit minimize backlash and enhance joint integrity in machinery, automotive, and aerospace components where precision is critical. With a Rockwell B70 hardness and 70,000 psi tensile strength, they withstand dynamic loads and harsh operating conditions. The partially threaded configuration and 3/8" hex drive simplify installation in confined spaces, reducing assembly time while maintaining high corrosion resistance for long service life in demanding environments.

Specification Summary & Compliance

This Socket Head Cap Screw features a 1/2"-20 UNF fine thread with Class 3A thread fit for precise dimensional accuracy, a minimum thread length of 1 3/4", and a 4" overall length. Manufactured in accordance with ASME B18.3 specifications, it ensures consistent performance and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety standards for industrial use.