S-96669A214 8-32 x 3/8" ASME B18.3 Sealing Tamper-Resistant Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance with integrated Buna-N rubber O-ring to prevent leaks in high-pressure systems up to 1500 psi
• Enhanced Tamper Resistance through specialized Torx T15 drive design for improved security in public or restricted access applications
• Excellent Corrosion Resistance from 18-8 stainless steel construction with passivated finish for extended service life in harsh environments
• Reliable Thread Engagement with Class 2A thread fit and UNC coarse threading for secure fastening and vibration resistance
• Optimized Head Design featuring undercut flat head profile for flush mounting and improved countersinking at 82° angle
• Broad Temperature Compatibility with O-ring rated for -40 to 225°F, suitable for various industrial temperature conditions
• High Tensile Strength of 70,000 psi ensures mechanical integrity under demanding load conditions

Professional Applications & Engineering Value

These 8-32 UNC flat head screws deliver critical sealing solutions for industrial applications where pressure integrity and environmental protection are paramount. The combination of 18-8 stainless steel material and passivated finish provides exceptional corrosion resistance in chemical processing, marine, and outdoor equipment. The Buna-N rubber O-ring creates a reliable seal against fluids and gases, making these tamper-resistant Torx T15 fasteners ideal for hydraulic systems, pneumatic controls, and enclosure sealing where unauthorized access must be prevented. The fully threaded design with coarse UNC threading ensures maximum thread engagement and vibration resistance in machinery, while the undercut flat head profile allows for flush installation in precision assemblies.

Specification Summary & Compliance

Manufactured to exacting ASME B18.3 standards with Class 2A thread fit tolerance for consistent performance. Features UNC coarse threads with right-hand direction and complete compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The passivated finish enhances corrosion resistance while maintaining dimensional accuracy across all critical parameters including head diameter (0.332"), length (3/8"), and maximum hole diameter (0.177").