S-93802A325 2-56 x 3/8" MIL-DTL-18240 Sealing Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior sealing performance with a silicone O-ring that maintains integrity across an extreme temperature range from -80° to 400° F, ideal for high-pressure environments up to 6000 psi.
• Vibration-resistant locking provided by the nylon patch thread locker, ensuring secure fastening in dynamic applications from -40° to 225° F without loosening.
• Excellent corrosion resistance due to the 18-8 stainless steel construction and passivated finish, offering long-term durability in harsh industrial settings.
• High tensile strength of 70,000 psi delivers reliable load-bearing capacity, reducing the risk of fastener failure under stress.
• Precise Class 2A thread fit with UNC coarse threading for easy installation and consistent engagement, minimizing assembly time and errors.
• Compliance with MIL-DTL-18240 and environmental standards like RoHS 3 and REACH, ensuring quality and safety for regulated industries.
• Rounded pan head with Phillips drive allows for straightforward tool engagement and a low-profile design, enhancing usability in confined spaces.

Professional Applications & Engineering Value

This 2-56 UNC rounded head screw is engineered to address critical challenges in high-pressure sealing and vibration-prone assemblies. The combination of an 18-8 stainless steel body, nylon patch thread locker, and silicone O-ring ensures a leak-proof seal and secure hold in demanding environments like hydraulic systems, automotive components, and industrial machinery. Its coarse thread design and Class 2A fit facilitate quick installation while maintaining precision, reducing downtime. The passivated finish enhances corrosion resistance, extending service life in moist or chemical-exposed applications. Ideal for OEMs and maintenance teams, this screw provides a robust solution for assemblies requiring reliability under extreme temperatures and pressures, backed by MIL-DTL-18240 compliance for military and aerospace use.

Specification Summary & Compliance

This screw features a 2-56 UNC thread size with Class 2A thread fit for precise dimensional accuracy, ensuring consistent performance. It is manufactured in accordance with MIL-DTL-18240 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and high-reliability applications. The design includes a 3/8" length and fully threaded profile for maximum versatility in assembly.