S-98070A899 M4 x 16 mm DIN 965 Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Superior sealing performance with integrated Buna-N rubber O-ring, rated for -40° to 225° F temperature range and up to 6000 PSI pressure, preventing leaks in demanding environments
• Excellent corrosion resistance due to 18-8 stainless steel construction and passivated finish, ensuring long-term durability in harsh industrial settings
• Precise metric threading with Class 6g fit and M4 x 0.7mm coarse pitch, providing reliable fastening and easy installation in standard metric applications
• Optimized flat head design with undercut profile and 90° countersink angle, enabling flush mounting and reduced risk of snagging in assembled components
• Efficient drive system featuring No. 2 Phillips drive style, allowing for quick installation with common tools while minimizing cam-out risks
• Full compliance with DIN 965 standards, ensuring dimensional accuracy and interchangeability for European metric fastener applications
• Environmental regulation adherence through RoHS 3 and REACH compliance, making them suitable for global industrial supply chains

Professional Applications & Engineering Value

These M4 metric flat head screws deliver exceptional engineering value in applications requiring reliable sealing under pressure. The combination of 18-8 stainless steel material and passivated finish provides superior corrosion resistance for harsh environments like chemical processing, marine equipment, and outdoor machinery. The integrated Buna-N rubber O-ring creates an effective seal that prevents fluid and gas leakage in hydraulic systems, pneumatic controls, and pressurized enclosures. The undercut flat head profile ensures proper seating in countersunk holes while the right-hand coarse threading offers quick installation and secure holding power. These features make them ideal for OEM assemblies, maintenance operations, and retrofit projects where pressure sealing capability and metric thread compatibility are critical performance requirements.

Specification Summary & Compliance

This M4 x 0.7mm x 16mm flat head screw features precise Class 6g thread fit according to metric standards with fully threaded shank for maximum engagement. The manufacturing specifications strictly adhere to DIN 965 standards for dimensional accuracy and performance. Regulatory compliance includes RoHS 3 (2015/863/EU) for restricted substance control and REACH (EC 1907/2006) for chemical safety, ensuring environmental responsibility and global market acceptance. The passivated finish on 18-8 stainless steel provides enhanced corrosion protection while maintaining the material's inherent strength characteristics.