S-98070A171 10-32 x 3/8" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Reliable Sealing Performance - Integrated Buna-N O-ring creates a secure seal capable of withstanding pressures up to 1500 psi, preventing leaks in critical applications
• Superior Corrosion Resistance - 18-8 stainless steel construction with passivated finish provides excellent protection against rust and chemical degradation
• Wide Temperature Compatibility - Maintains sealing integrity across extreme temperatures from -40° to 225°F for versatile industrial use
• Precision Thread Engagement - Class 2A thread fit ensures consistent, reliable fastening with minimal vibration loosening
• Optimized Head Design - Undercut flat head profile allows for flush mounting while maximizing sealing surface contact
• High Tensile Strength - 70,000 psi tensile strength provides durable, long-lasting fastening in demanding environments
• Environmental Compliance - Meets RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

This 10-32 UNF flat head Phillips screw delivers exceptional engineering value in sealing applications where fluid containment and pressure resistance are critical. The combination of 18-8 stainless steel material with passivated finish ensures corrosion resistance in harsh environments, while the Buna-N rubber O-ring provides reliable sealing against liquids and gases. The undercut flat head design allows for complete flush installation, making it ideal for applications where protrusions are unacceptable. With UNF fine threading and Class 2A thread fit, this fastener maintains precise engagement even under vibration, solving common industrial challenges of leak prevention and fastener reliability in hydraulic systems, pneumatic equipment, and industrial machinery requiring pressure-tight seals up to 1500 psi.

Specification Summary & Compliance

This sealing screw features Class 2A thread fit precision with UNF (Unified National Fine) 10-32 threading and full thread engagement. Manufactured to exacting standards with a 100° countersink angle and 0.204" maximum hole diameter compatibility. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across industrial applications while meeting rigorous quality and performance specifications.