S-98070A236 2-56 x 3/8" Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with Buna-N rubber O-rings that withstand pressures up to 1500 psi and temperatures from -40° to 225°F, preventing leaks in demanding environments.
• Excellent corrosion resistance due to 18-8 Stainless Steel construction and passivated finish, ensuring long-term durability in harsh industrial settings.
• High tensile strength of 70,000 psi provides reliable fastening under mechanical stress, reducing the risk of failure.
• Precise Class 2A thread fit with UNC coarse threading ensures easy installation and secure engagement in various materials.
• Flat head with undercut profile allows for flush mounting, minimizing protrusion and improving aesthetics in assembled products.
• Phillips No. 1 drive design offers efficient torque application and reduces cam-out during installation, saving time and effort.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global standards for industrial use.

Professional Applications & Engineering Value

This 2-56 UNC Flat Head Phillips Screw is engineered to address critical sealing challenges in industrial applications where pressure and corrosion are concerns. The 18-8 Stainless Steel material, combined with a passivated finish, resists rust and chemical exposure, making it ideal for machinery, automotive, and electronic enclosures. The integrated Buna-N rubber O-ring creates a reliable seal against fluids and gases, supporting operations in HVAC systems, fluid handling equipment, and outdoor devices exposed to temperature fluctuations. Its flat head with undercut and fully threaded design ensures a secure, low-profile fit, while the coarse thread spacing facilitates quick assembly in high-volume production lines, reducing downtime and maintenance costs.

Specification Summary & Compliance

This screw features a 2-56 UNC thread size with Class 2A thread fit for precise dimensional accuracy and easy installation. It is fully threaded and includes an 82° countersink angle for optimal seating. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards for industrial fasteners.