S-95198A544 3/8"-16 x 3/8" 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, ensuring reliable leak-proof connections in high-pressure and temperature-variable environments.
• Exceptional corrosion resistance from 18-8 Stainless Steel, providing long-lasting durability in harsh industrial conditions without rust or degradation.
• High tensile strength of 100,000 psi for secure fastening under extreme mechanical loads, reducing the risk of failure in critical applications.
• Precise Class 3A thread fit offering tighter tolerances for smoother assembly, improved vibration resistance, and enhanced joint integrity.
• Wide temperature resilience from -20° to 400°F, maintaining performance in both low and high-temperature operations without O-ring compromise.
• Easy installation with 5/16" hex drive and standard socket head design, allowing for quick, tool-efficient tightening in confined spaces.
• Compliance with multiple international standards including ASME B18.3, DIN 912, and ISO 4762, ensuring consistent quality and global interoperability.

Professional Applications & Engineering Value

This 3/8"-16 UNC Socket Head Cap Screw is engineered to address common industrial challenges such as fluid leakage, pressure fluctuations, and thermal stress in demanding environments. The 18-8 Stainless Steel construction provides excellent corrosion resistance, ideal for chemical processing, marine, or outdoor equipment where moisture exposure is a concern. Combined with the Viton® Fluoroelastomer O-Ring, it delivers robust sealing capabilities up to 1500 psi, making it perfect for hydraulic systems, pneumatic controls, and high-pressure valves. The Class 3A thread fit ensures precise engagement, reducing the likelihood of loosening under vibration in machinery and automotive assemblies. Its fully threaded design and standard socket head profile facilitate easy installation in tight spaces, enhancing efficiency in maintenance and production lines while meeting rigorous industry standards for reliability.

Specification Summary & Compliance

This fastener features a 3/8"-16 UNC coarse thread with Class 3A fit for high precision and strength, adhering to ASME B18.3, DIN 912, and ISO 4762 specifications. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity. The design includes a maximum hole diameter of 0.397" and is rated for pressures up to 1500 psi, with hardness of Rockwell B85 and tensile strength of 100,000 psi for dependable performance in industrial applications.