S-98070A167 10-24 x 5/8" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance – Integrated Buna-N O-ring creates a reliable seal against fluids and contaminants, withstanding pressures up to 1500 psi for leak-free operation.
• Excellent Corrosion Resistance – Made from 18-8 stainless steel with a passivated finish, ensuring long-term durability in harsh or humid environments.
• Wide Temperature Tolerance – O-ring remains effective from -40°F to 225°F, making it suitable for applications with thermal cycling or extreme conditions.
• High Tensile Strength – 70,000 psi tensile strength provides dependable load-bearing capability and resistance to mechanical stress.
• Precision Thread Fit – Class 2A UNC coarse threads ensure easy installation and secure fastening with reduced risk of cross-threading.
• Flush Mounting Design – Flat undercut head with 100° countersink angle allows for a smooth, low-profile finish in countersunk holes.
• Broad Industrial Compliance – Meets RoHS 3 and REACH standards, supporting use in regulated and environmentally conscious industries.

Professional Applications & Engineering Value

This 10-24 UNC flat head screw is engineered to address critical sealing and corrosion challenges in industrial assemblies. The combination of 18-8 stainless steel and a passivated finish offers robust protection against oxidation and chemical exposure, while the Buna-N rubber O-ring ensures a tight seal in high-pressure systems—such as fluid handling equipment, pneumatic devices, and outdoor enclosures. The flat undercut head and Phillips drive facilitate quick, flush installation, minimizing protrusion and maintaining aerodynamic or aesthetic surfaces. Ideal for OEM and MRO applications, this screw provides reliable performance where vibration, moisture, or temperature fluctuations are concerns.

Specification Summary & Compliance

This screw features a 10-24 UNC coarse thread with Class 2A thread fit for consistent engagement and assembly ease. It is fully threaded and designed for a maximum hole diameter of 0.204" with a 100° countersink angle. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it adheres to international environmental and safety standards, ensuring suitability for global industrial supply chains.