S-90825A122 2-56 x 3/16" Sealing Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring to prevent leaks in high-pressure applications up to 6000 psi
• Excellent corrosion resistance due to 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Wide temperature compatibility with O-ring maintaining integrity from -40° to 225°F for versatile industrial use
• Reliable thread engagement with Class 2A UNC coarse threads ensuring secure fastening and vibration resistance
• Optimized drive performance featuring Phillips No. 1 drive for efficient installation with standard tools
• Maximum pressure containment through fully threaded design and precision sealing technology
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 2-56 UNC rounded head Phillips screw delivers critical sealing solutions for industrial equipment exposed to fluids and pressure variations. The combination of 18-8 stainless steel material with passivated finish provides exceptional corrosion resistance in challenging environments, while the integrated Buna-N rubber O-ring creates a reliable seal that maintains integrity across extreme temperature ranges from -40° to 225°F. The Class 2A thread fit with coarse UNC threading ensures consistent engagement in vibration-prone applications, making these rounded head screws ideal for hydraulic systems, pneumatic controls, and industrial machinery where high-pressure sealing up to 6000 psi is required. The pan head profile with Phillips drive facilitates straightforward installation in confined spaces.

Specification Summary & Compliance

This precision-engineered fastener features 2-56 UNC coarse threads with Class 2A thread fit tolerance for reliable engagement. The 3/16" length and 0.18" head diameter provide optimal dimensional consistency. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety. The fully threaded design and standard rounded pan head profile meet industrial fastening requirements for high-pressure sealing applications.