S-92205A591 5/16"-18 x 2" Sealing Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life.
• High-pressure sealing integrity up to 20,000 psi, preventing leaks in critical fluid and gas systems.
• Exceptional tensile strength of 80,000 psi for reliable performance under heavy loads and vibrations.
• Wide temperature tolerance from -80° to 400°F, ensuring consistent operation in extreme thermal conditions.
• Secure and efficient installation with an external hex drive and coarse UNC threads for quick assembly and high clamp force.
• Reliable thread engagement with Class 2A fit, providing consistent fastening without cross-threading risks.
• Environmental compliance with RoHS 3 and REACH standards, meeting global regulatory requirements for industrial use.

Professional Applications & Engineering Value

This 5/16"-18 UNC hex head screw is engineered to address critical sealing and durability challenges in demanding industrial applications. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it suitable for chemical processing, marine, and outdoor equipment. The integrated silicone rubber O-ring provides a robust seal against high-pressure fluids and gases, preventing system failures in hydraulic, pneumatic, and plumbing assemblies. With a partially threaded design and coarse thread spacing, it ensures rapid installation and secure fastening in high-vibration environments, reducing maintenance downtime and enhancing operational safety.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy and reliable assembly. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and suitable for global industrial markets. The specifications include a thread size of 5/16"-18, a length of 2", and a maximum hole diameter of 0.336", providing consistent performance in accordance with industry engineering requirements.