S-98070A220 6-32 x 5/16" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance: Integrated silicone rubber O-ring provides reliable sealing against dust, moisture, and contaminants in demanding environments.
• Exceptional Corrosion Resistance: Crafted from 18-8 Stainless Steel with a passivated finish for enhanced durability and long-term performance in harsh conditions.
• High Mechanical Strength: Withstands up to 70,000 psi tensile strength and 20,000 psi pressure, ensuring structural integrity under extreme loads.
• Broad Temperature Compatibility: The silicone O-ring maintains flexibility and seal from -150° to 500° F, ideal for applications with thermal cycling.
• Precision Thread Fit: Class 2A thread fit and UNC coarse threading enable easy installation and secure fastening with reduced risk of cross-threading.
• Optimized Flush Mounting: Flat head with a 100° countersink angle allows for a smooth, flush surface finish, preventing snagging and improving aesthetics.
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards, ensuring safety and environmental responsibility for global industrial use.

Professional Applications & Engineering Value

This 6-32 UNC Flat Head Phillips Screw is engineered to solve critical sealing challenges in industrial assemblies. The combination of 18-8 Stainless Steel and a passivated finish offers excellent resistance to oxidation and chemical exposure, making it suitable for outdoor, marine, and chemical processing equipment. The silicone rubber O-ring provides a dependable seal in environments with wide temperature fluctuations, from cryogenic to high-heat settings, preventing leaks in hydraulic systems, pneumatic controls, and electronic enclosures. The fully threaded design and Phillips No. 1 drive ensure efficient installation with standard tools, reducing assembly time while maintaining a secure, vibration-resistant connection. Ideal for applications requiring a flush surface, such as machinery panels and automotive components, this screw enhances both performance and safety in sealing-critical scenarios.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy and reliable engagement. Key specifications include a thread size of 6-32, length of 5/16 inch, head diameter of 0.279 inch, and a 100° countersink angle. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industries worldwide.