S-90505A528 M5 x 20 mm DIN 965 Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments.
• Reliable high-pressure sealing up to 6000 psi, preventing leaks in critical fluid and gas systems.
• Exceptional temperature tolerance from -20° to 400° F, thanks to the Viton® fluoroelastomer O-ring.
• Precise fit and easy installation with a Class 6g thread fit and Phillips No. 2 drive for secure, flush mounting.
• Optimized for countersunk applications featuring an undercut flat head and 90° angle for a smooth, finished surface.
• Full thread engagement along the 20mm length ensures maximum holding power and vibration resistance.
• Compliance with international standards including DIN 965, RoHS 3, and REACH for guaranteed quality and safety.

Professional Applications & Engineering Value

This M5 flat head screw is engineered to solve critical sealing challenges in demanding industrial settings. The combination of 316 stainless steel and a Viton® fluoroelastomer O-ring provides excellent resistance to corrosion, chemicals, and extreme temperatures, making it ideal for applications in chemical processing, marine equipment, and automotive systems. The undercut flat head profile and coarse metric thread ensure a tight, flush fit that prevents loosening under vibration, while the fully threaded design offers consistent clamping force. It is specifically designed for use in high-pressure environments up to 6000 psi, providing a reliable seal that minimizes maintenance and downtime in pumps, valves, and hydraulic assemblies.

Specification Summary & Compliance

This screw features a Metric M5 x 0.8mm coarse thread with a Class 6g tolerance for precise fit. It is manufactured in compliance with DIN 965 standards and is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations for industrial use.