S-90825A953 1/4"-20 x 3/4" Sealing Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior Sealing Performance – Integrated silicone O-ring creates reliable seals capable of withstanding pressures up to 6000 psi, preventing leaks in demanding applications.
• Exceptional Corrosion Resistance – Made from 18-8 Stainless Steel with a passivated finish for enhanced durability in harsh or humid environments.
• Wide Temperature Tolerance – Silicone O-ring maintains integrity across a broad range from -80° to 400°F, ensuring performance in extreme conditions.
• Easy Installation & High Strength – Phillips drive (No. 3) and UNC coarse threading facilitate quick assembly, backed by a tensile strength of 70,000 psi.
• Full Thread Engagement – Fully threaded design provides consistent clamping force and secure fastening across the entire length.
• Regulatory Compliance – Meets RoHS 3 and REACH standards, ensuring safety and environmental responsibility for global supply chains.
• Optimized Head Design – Rounded pan head offers a low profile and smooth appearance while distributing load effectively.

Professional Applications & Engineering Value

This 1/4"-20 x 3/4" Phillips Pan Head Screw is engineered to address critical sealing challenges in high-pressure and temperature-variable environments. The combination of 18-8 Stainless Steel and a passivated finish provides excellent resistance to corrosion and oxidation, extending service life in industrial settings such as hydraulic systems, pumps, and compressors. The silicone O-ring ensures a tight seal even under dynamic loads, preventing fluid or gas leakage in applications up to 6000 psi. With UNC coarse threads and a Class 2A thread fit, it offers reliable engagement and vibration resistance, making it ideal for machinery, automotive assemblies, and processing equipment where durability and leak-proof performance are paramount.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with Class 2A tolerance for consistent fit and assembly. It is fully threaded, with a length of 3/4" and a pan head diameter of 0.517". Manufactured from 18-8 Stainless Steel and finished with passivation for added corrosion protection. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets strict environmental and safety standards for industrial use.