S-98070A164 8-32 x 7/8" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Reliable sealing performance with integrated Buna-N rubber O-ring that withstands pressures up to 1500 psi and temperatures from -40° to 225°F
• Superior corrosion resistance thanks to 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• High tensile strength of 70,000 psi ensures structural integrity and prevents failure under heavy loads
• Precise Class 2A thread fit with UNC coarse threading provides secure fastening and easy installation
• Optimized flat head design with 100° countersink angle and undercut profile for flush mounting and improved aesthetics
• Enhanced drive engagement with Phillips No. 2 drive style prevents cam-out and ensures efficient installation
• Environmental compliance with RoHS 3 and REACH regulations for safe use across various industrial applications

Professional Applications & Engineering Value

This 8-32 UNC flat head Phillips screw delivers exceptional engineering value in demanding sealing applications where fluid or gas containment is critical. The combination of 18-8 stainless steel material and passivated finish provides outstanding corrosion resistance, making it ideal for harsh environments including marine, chemical processing, and outdoor equipment. The integrated Buna-N rubber O-ring creates a reliable seal that maintains integrity across a wide temperature range from -40° to 225°F, solving common leakage issues in hydraulic systems, pneumatic equipment, and industrial machinery. The fully threaded design with coarse UNC threading ensures maximum holding power while the flat head with undercut profile allows for flush installation in countersunk holes, providing both functional and aesthetic benefits in precision assemblies.

Specification Summary & Compliance

This sealing screw features precision Class 2A thread fit with 8-32 UNC coarse threads and fully threaded construction measuring 7/8" in length. The manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory compliance for industrial applications worldwide. The screw maintains dimensional accuracy with a head diameter of 0.332", head height of 0.048", and is engineered for maximum hole diameter of 0.179" with a 100° countersink angle for proper seating.