S-92196A307 1/4"-20 x 4 1/4" 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 reducing maintenance costs.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness, ensuring reliable load-bearing and resistance to deformation.
• Precise, vibration-resistant fit from Class 3A thread tolerance, minimizing loosening in high-stress applications.
• Easy installation and high torque capability with a standard hex socket (3/16" drive) and socket head design, allowing for efficient assembly in confined spaces.
• Versatile fastening solution featuring a 1/4"-20 UNC coarse thread and 4 1/4" partially threaded length, suitable for a wide range of material thicknesses.
• Long-term reliability backed by compliance with ASME B18.3, ensuring dimensional consistency and interchangeability.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory standards for safe use.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Socket Head Cap Screw is engineered to address critical challenges in industrial and mechanical assemblies. Its 1/4"-20 UNC coarse thread and Class 3A fit provide excellent engagement in metals and plastics, reducing cross-threading risks and ensuring a secure, vibration-resistant connection even under dynamic loads. The partially threaded design allows for precise clamping without unnecessary thread engagement, optimizing strength and ease of disassembly. With a 70,000 psi tensile strength and corrosion-resistant properties, it is ideal for machinery, automotive, and outdoor equipment where durability and reliable fastening are paramount. The hex drive socket head facilitates quick installation in tight spaces, enhancing productivity in maintenance and production lines.

Specification Summary & Compliance

This screw adheres to ASME B18.3 specifications, ensuring precise dimensional standards for the socket head cap screw type. Threading follows UNC coarse thread standards with a Class 3A fit for tight tolerances and superior thread engagement. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of restricted hazardous substances and safe for industrial use worldwide.