S-95198A395 7/16"-20 x 1 1/2" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring, effectively preventing fluid and gas leaks in demanding applications.
• Exceptional corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in harsh or humid environments.
• High-strength fastening with a tensile strength of 100,000 psi and Rockwell B85 hardness for secure, vibration-resistant connections.
• Precise, reliable threading featuring a Class 3A UNF fine thread for superior engagement and load distribution in critical assemblies.
• Wide temperature tolerance with an O-ring rated from -40° to 225° F, maintaining seal integrity across diverse operating conditions.
• High-pressure capability designed to withstand up to 1500 psi, ideal for hydraulic, pneumatic, and other pressurized systems.
• Easy installation and removal with a standard 3/8" hex drive, allowing for efficient assembly with common tools in confined spaces.

Professional Applications & Engineering Value

This Socket Head Cap Screw is engineered to address critical sealing and strength challenges in industrial settings. The 18-8 Stainless Steel body provides excellent resistance to rust and corrosion, making it suitable for marine, chemical processing, and outdoor equipment. The integrated Buna-N rubber O-ring creates a reliable seal that prevents leakage in high-pressure fluid systems, such as hydraulic cylinders, pumps, and compressors, where even minor leaks can lead to system failure or downtime. The Class 3A UNF fine thread ensures a tight, precise fit, reducing the risk of loosening under vibration and improving load-bearing capacity in machinery and structural applications. Its fully threaded design and hex drive facilitate quick installation in hard-to-reach areas, enhancing assembly efficiency and maintenance workflows.

Specification Summary & Compliance

This screw features a 7/16"-20 UNF thread with a Class 3A fit for high precision and strength. It complies with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring consistent quality and interchangeability. The product is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.