S-96669A225 10-32 x 3/8" ASME B18.3 Sealing Tamper-Resistant Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated Buna-N rubber O-ring creates a reliable seal against contaminants and fluids, withstanding pressures up to 1500 psi for leak-proof assemblies.
• Enhanced Tamper Resistance: Tamper-Resistant Torx T25 drive provides increased security, deterring unauthorized access in public or high-security environments.
• Excellent Corrosion Resistance: Made from 18-8 Stainless Steel with a passivated finish for long-lasting durability in harsh or moist conditions.
• Optimized Head Design: Undercut flat head with 82° countersink angle allows for a flush, low-profile installation, reducing snagging and improving aesthetics.
• Precise Thread Engagement: 10-32 UNF fine threads with a Class 2A fit ensure accurate, secure fastening and vibration resistance in fine-pitch applications.
• Broad Temperature Compatibility: Buna-N O-ring maintains sealing integrity across a wide temperature range from -40 to 225°F, suitable for various operational environments.
• High Tensile Strength: With a 70,000 psi tensile strength and full threading, this screw offers robust clamping force and structural reliability.

Professional Applications & Engineering Value

This 10-32 UNF flat head screw is engineered to address critical challenges in industrial assembly, where both security and sealing are paramount. The combination of 18-8 stainless steel and a passivated finish provides exceptional resistance to corrosion and wear, extending service life in demanding settings such as outdoor enclosures, machinery, and fluid handling systems. The tamper-resistant Torx drive (T25) prevents tampering in public-access equipment, while the integrated Buna-N rubber O-ring ensures a tight seal against dust, moisture, and high-pressure fluids up to 1500 psi. Its undercut flat head design allows for a smooth, flush finish, reducing protrusion risks and improving safety. Ideal for securing panels, electronic housings, and hydraulic components, this screw delivers reliable performance where vibration resistance and environmental sealing are essential.

Specification Summary & Compliance

This screw meets precise dimensional standards with a Class 2A thread fit and UNF fine threading, ensuring consistent engagement and assembly accuracy. It is manufactured in compliance with ASME B18.3 specifications for flat head screws. Additionally, the product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for use in global industrial markets.