S-95198A507 1/4"-20 x 1" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with Viton® Fluoroelastomer O-Ring, resisting temperatures from -20° to 400° F and pressures up to 1500 psi for reliable operation in harsh environments.
• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term durability and reduced maintenance in industrial settings.
• High tensile strength of 100,000 psi provides robust fastening integrity, minimizing the risk of failure under heavy loads.
• Precise Class 3A thread fit ensures tight, secure connections with minimal backlash, enhancing assembly accuracy and vibration resistance.
• Wide compatibility with UNC coarse threading and 3/16" hex drive, facilitating easy installation and removal with standard tools.
• Compliance with major standards including ASME B18.3, DIN 912, and ISO 4762, guaranteeing interchangeability and quality assurance for global applications.
• Environmental and safety adherence through RoHS 3 and REACH compliance, supporting sustainable and safe usage in regulated industries.

Professional Applications & Engineering Value

This Socket Head Cap Screw is engineered to address critical challenges in demanding industrial environments where sealing efficiency and mechanical reliability are paramount. The combination of 18-8 Stainless Steel and a Viton® Fluoroelastomer O-Ring provides excellent resistance to chemicals, extreme temperatures (-20° to 400° F), and high pressures up to 1500 psi, making it ideal for applications in hydraulic systems, automotive assemblies, and processing equipment. The UNC coarse thread and Class 3A fit ensure quick, secure fastening with reduced loosening risks, while the hex drive design allows for efficient torque application in confined spaces. By integrating these features, it solves common issues like fluid leakage and fastener degradation, delivering long-lasting performance in high-pressure sealing scenarios.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC thread with Class 3A thread fit for precise dimensional accuracy, and is fully threaded for consistent engagement. It adheres to ASME B18.3, DIN 912, and ISO 4762 standards, ensuring reliable manufacturing and interchangeability. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms its suitability for environmentally conscious and regulated industrial applications.