S-98070A670 M4 x 6 mm DIN 965 Sealing Stainless Steel Phillips Flat Head Screws

Key Features & Benefits at a Glance

• Reliable Sealing Performance: Integrated silicone rubber O-ring ensures leak-proof joints in high-pressure applications up to 6000 psi, reducing maintenance and downtime.
• Superior Corrosion Resistance: Made from 18-8 stainless steel with a passivated finish, offering excellent durability in harsh environments and extending service life.
• Precision Thread Fit: Class 6g coarse threading provides secure, vibration-resistant fastening with easy installation in metric assemblies.
• Optimized Head Design: Undercut flat head with 90° countersink angle ensures a flush, low-profile fit, minimizing protrusion and improving aesthetics.
• Wide Temperature Tolerance: Silicone O-ring maintains sealing integrity across extreme temperatures from -80° to 400° F, ideal for thermal cycling applications.
• High Tensile Strength: 70,000 psi tensile strength delivers robust clamping force for demanding mechanical fastening needs.
• Regulatory Compliance: Meets DIN 965 standards and is RoHS 3 and REACH compliant, ensuring safety and environmental responsibility in global supply chains.

Professional Applications & Engineering Value

This M4 flat head sealing screw is engineered to address critical challenges in industrial sealing and fastening. The 18-8 stainless steel construction, combined with a passivated finish, provides exceptional resistance to corrosion, making it suitable for outdoor, marine, and chemical processing equipment. The integrated silicone rubber O-ring and coarse metric thread (M4 x 0.7mm) enable reliable sealing against fluids and gases under pressures up to 6000 psi, preventing leaks in hydraulic systems, pneumatic controls, and automotive assemblies. The undercut flat head design allows for a seamless fit in countersunk holes, reducing stress concentrations and improving load distribution. Ideal for applications requiring high-pressure resistance and long-term reliability, this screw ensures operational integrity in demanding environments like machinery enclosures, fluid handling systems, and electronic housings.

Specification Summary & Compliance

This screw features precise Class 6g thread fit per ISO metric standards, ensuring consistent engagement and tolerance control. Manufactured in compliance with DIN 965 specifications for flat head screws, it guarantees dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for hazardous substance restrictions.