S-98070A149 6-32 x 3/8" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Reliable sealing performance with integrated Buna-N O-ring to prevent leaks in pressurized systems up to 1500 psi
• Superior corrosion resistance from 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Broad temperature compatibility with O-ring rated from -40° to 225°F for stable performance across diverse operating conditions
• Precise thread engagement with Class 2A UNC coarse threads ensuring consistent fastening and vibration resistance
• Flush mounting capability through undercut flat head design that sits perfectly countersunk in 100° angled holes
• Efficient installation with Phillips No. 1 drive providing secure tool engagement and reduced cam-out risk
• Regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industrial applications

Professional Applications & Engineering Value

These 6-32 UNC flat head Phillips screws deliver critical sealing solutions where fluid containment and environmental protection are paramount. The combination of 18-8 stainless steel material and passivated finish provides exceptional resistance to corrosion, oxidation, and chemical exposure in industrial settings. The integrated Buna-N rubber O-ring creates a reliable seal against moisture, gases, and contaminants, while the undercut flat head profile ensures proper seating in countersunk applications without protrusion. Engineered for pressure-rated systems up to 1500 psi, these fully threaded fasteners maintain integrity in hydraulic components, pneumatic equipment, and outdoor enclosures where thermal cycling from -40° to 225°F would compromise standard seals.

Specification Summary & Compliance

This sealing screw features precision 6-32 UNC coarse threads with Class 2A fit for consistent engagement and assembly efficiency. The flat head with 100° countersink angle accommodates standard machining practices, while the fully threaded 3/8" length provides maximum fastening strength. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material traceability for industrial procurement requirements.