S-90505A500 M2.5 x 16 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 environments including marine and chemical applications.
• Reliable high-pressure sealing up to 6000 psi, preventing leaks in critical assemblies and reducing maintenance needs.
• Excellent temperature stability with a Viton® O-ring that performs from -20° to 400° F, ensuring seal integrity under thermal stress.
• Optimized for flush mounting thanks to the flat undercut head design, providing a smooth surface finish and improved aesthetics.
• Easy and secure installation with a Phillips No. 1 drive and coarse M2.5x0.45mm threads, reducing assembly time and risk of stripping.
• Precise thread fit (Class 6g) ensures consistent engagement and vibration resistance in metric threaded holes.
• Compliance with DIN 965 guarantees dimensional accuracy and interchangeability in European machinery and equipment.

Professional Applications & Engineering Value

This M2.5 flat head screw is engineered to address critical sealing challenges in high-pressure and corrosive environments. The combination of 316 stainless steel and a Viton® fluoroelastomer O-ring provides a durable, long-lasting seal that resists chemicals, oils, and extreme temperatures from -20° to 400° F. The undercut flat head allows for a countersunk fit, minimizing protrusion and preventing snagging in compact assemblies. Fully threaded and compliant with DIN 965, it ensures reliable performance in automotive, aerospace, and industrial fluid systems where leak-proof fastening is essential. Its Phillips drive and coarse metric thread facilitate quick installation, reducing labor costs and enhancing production efficiency.

Specification Summary & Compliance

This metric screw features a Class 6g thread fit with M2.5x0.45mm coarse threads and a right-hand thread direction, ensuring precise engagement. It is manufactured to DIN 965 standards for dimensional consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety requirements for industrial use.