S-90825A580 2-56 x 1/2" Sealing Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior sealing performance with silicone rubber O-rings that withstand extreme temperatures from -80° to 400°F and pressures up to 6000 psi
• Exceptional corrosion resistance thanks to 18-8 stainless steel construction with passivated finish for extended service life
• High tensile strength of 70,000 psi ensures reliable fastening in demanding industrial applications
• Precision threading with Class 2A UNC coarse threads provides consistent engagement and vibration resistance
• Easy installation with Phillips No. 1 drive design and rounded pan head profile for straightforward assembly
• Full thread coverage along the entire 1/2" length maximizes grip strength and load distribution
• Regulatory compliance with RoHS 3 and REACH standards for safe use across various industries

Professional Applications & Engineering Value

These 2-56 UNC rounded head Phillips screws with integrated silicone rubber O-rings solve critical sealing challenges in industrial environments where fluid containment and pressure management are paramount. The 18-8 stainless steel construction combined with passivated finish provides exceptional resistance to corrosion, making these sealing screws ideal for applications exposed to moisture, chemicals, or outdoor elements. The coarse UNC threading with Class 2A fit ensures reliable installation in various materials while maintaining sealing integrity. These O-ring screws are engineered for equipment requiring pressure-tight seals up to 6000 psi, including hydraulic systems, pneumatic controls, and fluid handling assemblies where leak prevention is critical to operational safety and efficiency.

Specification Summary & Compliance

This rounded head screw features precise 2-56 UNC coarse threading with Class 2A fit for standard industrial applications. The 1/2" length provides full threading coverage with a maximum hole diameter of 0.095". Manufactured from 18-8 stainless steel with passivated finish for enhanced corrosion protection. The integrated silicone rubber O-ring delivers reliable sealing performance across a wide temperature range. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety and restricted substance control.