S-95198A391 7/16"-20 x 1" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Reliable Sealing Performance – Integrated Buna-N rubber O-ring ensures leak-proof joints, maintaining integrity from -40° to 225°F under pressures up to 1500 psi.
• Exceptional Corrosion Resistance – Made from 18-8 stainless steel, offering superior durability in harsh or humid industrial environments.
• Precision Thread Fit – Class 3A UNF fine threads provide tighter tolerances and enhanced vibration resistance for secure, long-lasting assemblies.
• High Tensile Strength – Rated at 100,000 psi tensile strength with Rockwell B85 hardness, ensuring reliable performance under heavy loads.
• Easy Installation & Removal – Standard 3/8" hex drive socket head allows for straightforward access and torque application in confined spaces.
• Full Thread Engagement – Fully threaded design maximizes grip and distribution of clamping force across the entire length.
• Global Compliance & Interchangeability – Meets ASME B18.3, DIN 912, and ISO 4762 standards, ensuring compatibility with existing systems and RoHS 3/REACH environmental regulations.

Professional Applications & Engineering Value

This 7/16"-20 UNF Socket Head Cap Screw is engineered to address critical sealing and mechanical fastening challenges in demanding applications. The 18-8 stainless steel construction provides excellent corrosion resistance, while the Buna-N rubber O-ring delivers consistent sealing performance across a wide temperature range (-40° to 225°F). Its Class 3A UNF fine thread ensures precise fit and superior resistance to loosening under vibration, making it ideal for hydraulic systems, pneumatic equipment, and high-pressure machinery. The fully threaded design and 3/8" hex drive facilitate quick assembly and disassembly, reducing maintenance downtime in industrial settings such as automotive, aerospace, and fluid handling systems.

Specification Summary & Compliance

This socket head cap screw features a 7/16"-20 UNF fine thread with Class 3A fit for high precision. It is manufactured in accordance with ASME B18.3, DIN 912, and ISO 4762 standards, ensuring dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety requirements for industrial use.