S-95198A211 3/8"-16 x 1 1/4" ASME B18.3, DIN 912, ISO 4762 Sealing Socket Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated silicone O-ring provides reliable sealing against dust, moisture, and fluids, rated for pressures up to 1500 psi.
• Exceptional Temperature Resistance: Maintains sealing integrity across a wide temperature range from -80°F to 400°F, ideal for extreme environments.
• High Strength & Durability: 100,000 psi tensile strength and Rockwell B85 hardness ensure reliable performance under heavy loads and vibration.
• Precision Thread Fit: Class 3A thread fit with UNC coarse threading delivers secure fastening with reduced risk of cross-threading.
• Corrosion-Resistant Construction: 18-8 stainless steel material offers excellent resistance to rust and corrosion in harsh industrial settings.
• Optimized Drive Design: Hex socket drive with 5/16" drive size allows for high torque application and secure installation in confined spaces.
• Full Thread Engagement: Fully threaded design provides maximum grip strength and uniform stress distribution along the entire length.

Professional Applications & Engineering Value

This socket head cap screw with integrated silicone O-ring seal addresses critical sealing challenges in high-pressure and temperature-variant applications. The 18-8 stainless steel construction ensures long-term corrosion resistance, while the UNC coarse thread and Class 3A fit provide reliable engagement in dynamic environments. Engineers specify this fastener for hydraulic systems, pneumatic equipment, and industrial machinery where 1500 psi pressure rating and -80° to 400°F temperature range are operational requirements. The hex drive socket design enables precise installation in tight spaces, making it ideal for maintenance-critical applications where leak prevention is paramount.

Specification Summary & Compliance

This socket head cap screw features 3/8"-16 UNC coarse threads with Class 3A thread fit for precision engagement. Manufactured to ASME B18.3, DIN 912, and ISO 4762 standards, ensuring dimensional accuracy and interchangeability. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring strict material compliance.