S-97725A116 12.2 mm ID x 17.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Excellent Electrical Conductivity: Copper material ensures reliable performance in electrical connections and grounding applications.
• Superior Corrosion Resistance: Naturally resistant to rust and corrosion, ideal for harsh or humid environments.
• Precise Dimensional Fit: 12.2mm ID and 17.9mm OD provide an accurate fit for M12 screws, preventing loosening and misalignment.
• Effective Sealing & Load Distribution: 1.3-1.7mm thickness offers optimal surface pressure for sealing fluids and distributing load evenly.
• High Thermal Performance: Copper's thermal conductivity helps dissipate heat in high-temperature assemblies.
• Compliance with DIN 7603: Manufactured to international standards for consistent quality and interchangeability.
• Durable & Long-Lasting: Copper construction maintains integrity under repeated use in industrial settings.

Professional Applications & Engineering Value

This M12 metric copper flat washer is engineered to address critical challenges in electrical and mechanical systems. Its high-purity copper construction delivers unmatched electrical conductivity, making it essential for grounding applications, electrical panels, and circuitry where signal integrity is paramount. The corrosion-resistant properties ensure longevity in plumbing systems, marine equipment, and industrial machinery exposed to moisture or chemicals. With a flat washer profile conforming to DIN 7603, it provides reliable sealing against leaks in fluid-handling assemblies and even load distribution to prevent surface damage on soft materials. The precise metric dimensions (12.2mm ID, 17.9mm OD) guarantee compatibility with M12 screws, reducing installation errors and enhancing assembly efficiency in automotive, HVAC, and manufacturing applications.

Specification Summary & Compliance

This washer features precise dimensions: Inner Diameter of 12.2mm, Outer Diameter of 17.9mm, and Thickness ranging from 1.3mm to 1.7mm, designed for M12 screw size. It is manufactured in compliance with DIN 7603 standards, ensuring dimensional accuracy and performance consistency. The copper material meets general industry requirements for electrical conductivity and corrosion resistance, and while specific hardness is not rated, it is suitable for standard industrial applications. The product aligns with common regulatory guidelines such as RoHS and REACH for material safety, supporting use in various electrical and plumbing systems.