S-90152A319 1/4"-20 x 3/8" ASME B18.3, ASTM F837 Stainless Steel Wire-Lockable Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and extended service life.
• Superior load-bearing capability with a high 80,000 psi tensile strength, ensuring reliable performance under significant stress.
• Precise and secure fastening due to the Class 3A thread fit, minimizing the risk of loosening in critical assemblies.
• Robust and durable build with a Rockwell B70 hardness, providing excellent resistance to wear and deformation.
• Efficient installation and removal using a standard 3/16" hex drive, allowing for high torque application in confined spaces.
• Broad compatibility with 1/4"-20 UNC coarse threads, making it a versatile choice for a wide range of industrial equipment.
• Guaranteed material safety as it is RoHS 3 and REACH compliant, meeting stringent international regulatory standards.

Professional Applications & Engineering Value

This 18-8 Stainless Steel Socket Head Cap Screw is engineered to address common challenges in demanding industrial settings, such as vibration-induced loosening and material fatigue. The Class 3A thread fit on the 1/4"-20 UNC coarse thread ensures a tighter, more precise engagement, significantly enhancing joint integrity in machinery, automotive assemblies, and heavy-duty equipment. The combination of high tensile strength (80,000 psi) and Rockwell B70 hardness provides a durable fastening solution that withstands high dynamic loads and harsh operating conditions. The hex drive design allows for secure tool engagement, facilitating efficient maintenance and reducing assembly time in space-constrained applications, making it an indispensable component for engineers seeking reliability and longevity.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC thread with a Class 3A fit for high precision. It is manufactured in accordance with ASME B18.3 specifications where identified as ASTM F837. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets current environmental and safety standards for industrial use.