S-90825A350 4-40 x 3/4" Sealing Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior sealing performance with a Fluoroelastomer O-Ring that withstands temperatures from -20° to 400° F, ideal for high-pressure environments up to 6000 psi.
• Excellent corrosion resistance thanks to 18-8 Stainless Steel construction and a passivated finish, ensuring long-term durability in harsh industrial conditions.
• High tensile strength of 70,000 psi provides reliable fastening integrity for demanding applications, reducing the risk of mechanical failure.
• Precise Class 2A thread fit with 4-40 UNC coarse threading ensures easy installation and consistent engagement, minimizing assembly time.
• Fully threaded design offers maximum grip and load distribution along the entire 3/4" length, enhancing joint stability.
• Phillips drive (No. 1 size) and rounded pan head profile allow for straightforward installation with standard tools, improving workflow efficiency.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global standards for industrial components.

Professional Applications & Engineering Value

This 4-40 UNC rounded head Phillips screw is engineered to address critical sealing challenges in industrial settings, such as fluid systems and machinery exposed to high pressures up to 6000 psi. The combination of 18-8 stainless steel and a passivated finish provides robust corrosion resistance, extending service life in corrosive environments. The integrated Fluoroelastomer O-Ring ensures a reliable seal across a wide temperature range (-20° to 400° F), preventing leaks in applications like hydraulic assemblies or automotive components. With its coarse thread and Class 2A fit, it facilitates quick, secure fastening, reducing downtime and maintenance costs while meeting stringent RoHS and REACH compliance for safe, sustainable operations.

Specification Summary & Compliance

This screw features a 4-40 UNC coarse thread with Class 2A dimensional accuracy for precise fit, fully threaded along a 3/4" length. It adheres to standard manufacturing specifications for rounded pan head profiles and Phillips drive systems. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.