S-98070A154 6-32 x 7/8" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Reliable Sealing Performance - Integrated Buna-N O-ring creates positive seals up to 1500 psi, preventing leaks in demanding applications
• Superior Corrosion Resistance - 18-8 stainless steel construction with passivated finish ensures excellent durability in harsh environments
• High Strength Construction - 70,000 psi tensile strength provides reliable fastening for critical industrial applications
• Wide Temperature Compatibility - O-ring maintains sealing integrity across broad temperature range from -40° to 225°F
• Precision Thread Engagement - Class 2A thread fit with UNC coarse threading ensures consistent, reliable installation
• Flush Mounting Capability - Undercut flat head design allows for clean, recessed installation in various materials
• Regulatory Compliance Ready - Meets RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 6-32 UNC flat head Phillips screw with integrated Buna-N O-ring sealing technology addresses critical challenges in industrial assembly where environmental sealing is paramount. Engineered from 18-8 stainless steel with a passivated finish, the fastener provides exceptional corrosion resistance while the undercut flat head profile ensures proper seating in countersunk applications. The fully threaded design with Class 2A thread fit guarantees consistent clamping force distribution, making it ideal for pressure vessel assemblies, fluid handling systems, and outdoor equipment where moisture, dust, or pressure differentials pose contamination risks. The combination of 70,000 psi tensile strength and 1500 psi pressure rating ensures reliable performance in demanding mechanical applications requiring both structural integrity and environmental protection.

Specification Summary & Compliance

This sealing screw features 6-32 UNC coarse threads with Class 2A thread fit precision, ensuring consistent engagement and reliable fastening. The 7/8" length and fully threaded design provide maximum fastening versatility. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making it suitable for global industrial applications requiring environmental compliance. The 100° countersink angle and 0.152" maximum hole diameter specification ensure proper installation in standard countersunk applications.