S-92205A728 1/2"-13 x 1 1/2" Sealing Hex Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with silicone rubber O-rings that withstand extreme temperatures from -80° to 400°F, preventing leaks in demanding environments
• Exceptional pressure resistance rated for up to 20,000 PSI, ensuring reliable performance in high-pressure industrial applications
• High-strength 18-8 stainless steel construction provides 80,000 PSI tensile strength and Rockwell B85 hardness for maximum durability and corrosion resistance
• Precision Class 2A thread fit with UNC coarse threading ensures easy installation and secure fastening in various materials
• Full threading design with 1-1/4" minimum thread length offers maximum engagement strength and vibration resistance
• Standard external hex drive with 3/4" head width allows for easy installation using common tools and consistent torque application
• Compliant with environmental regulations including RoHS 3 and REACH, making them suitable for global industrial applications

Professional Applications & Engineering Value

This 1/2"-13 UNC hex head screw with integrated silicone O-ring addresses critical sealing challenges in industrial environments where pressure integrity is paramount. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining 80,000 PSI tensile strength, making these screws ideal for high-stress applications in chemical processing, hydraulic systems, and pressure vessels. The coarse UNC threading with Class 2A fit ensures reliable engagement in various materials, while the fully threaded design maximizes clamping force distribution. Engineered to withstand 20,000 PSI maximum pressure, these sealing screws prevent fluid and gas leaks in critical joints, reducing maintenance downtime and enhancing system reliability across industrial machinery, pipeline fittings, and equipment enclosures.

Specification Summary & Compliance

This hex head screw features precise 1/2"-13 UNC coarse threads with Class 2A thread fit tolerance, ensuring consistent performance across industrial applications. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming suitability for global industrial use. With dimensions including 1-1/2" length, 3/4" head width, and 1-1/4" minimum thread length, these screws maintain dimensional accuracy for reliable installation. The silicone rubber O-ring material is rated for operation from -80° to 400°F, while the 18-8 stainless steel provides Rockwell B85 hardness and 80,000 PSI tensile strength for demanding mechanical applications.