S-92196A304 1/4"-20 x 1 5/8" ASME B18.3 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Tensile Strength – With 70,000 psi tensile strength, this screw provides reliable holding power in high-stress applications, reducing the risk of fastener failure.
• Superior Corrosion Resistance – Made from 18-8 Stainless Steel, it offers excellent resistance to rust and corrosion, ensuring long-term durability in harsh environments.
• Precision Thread Fit – Class 3A thread fit ensures tight, secure fastening with minimal backlash, enhancing assembly accuracy and vibration resistance.
• Optimized Drive Engagement – The 3/16" hex drive and standard socket head profile allow for easy installation and high torque application without stripping.
• Versatile Partial Threading – Partially threaded design provides unthreaded shank for precise clamping and alignment in varied industrial setups.
• High Hardness Rating – Rockwell B70 hardness ensures the screw maintains its shape and performance under repeated use and high loads.
• Broad Compliance – Meets ASME B18.3 standards and is RoHS 3 and REACH compliant, ensuring safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 1/4"-20 UNC Socket Head Cap Screw is engineered to address common industrial challenges such as vibration loosening, corrosion in moist or chemical environments, and the need for high-strength fastening in machinery and equipment. The 18-8 Stainless Steel material provides inherent corrosion resistance, making it ideal for outdoor, marine, or food processing applications where exposure to elements is a concern. Its Class 3A thread fit and coarse thread spacing ensure quick assembly and reliable performance in dynamic loads, while the partial threading allows for precise grip in structural joints. Commonly used in automotive, aerospace, and manufacturing sectors, this screw delivers consistent tensile strength and durability, reducing maintenance costs and downtime.

Specification Summary & Compliance

This socket head cap screw features a 1/4"-20 UNC thread with Class 3A precision fit and coarse thread spacing, ensuring dimensional accuracy per ASME B18.3 specifications. It is manufactured from 18-8 Stainless Steel with a tensile strength of 70,000 psi and Rockwell B70 hardness. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and suitable for international industrial use.