S-97725A630 42.3 mm ID x 48.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Exceptional electrical conductivity for reliable performance in electrical and grounding applications, reducing energy loss.
• Superior corrosion resistance ensures long-term durability and reliability in harsh or humid environments.
• Precise dimensional accuracy with a 42.3mm ID and 48.9mm OD for a perfect fit with M42 screws, preventing loosening and misalignment.
• High-temperature suitability maintains structural integrity and performance in elevated temperature conditions.
• Compliance with DIN 7603 standard guarantees consistent quality, interchangeability, and adherence to recognized engineering norms.
• Excellent malleability allows for a secure seal and even load distribution, protecting connected surfaces.
• Optimized thickness range (1.8-2.2mm) provides the ideal balance between mechanical support and material efficiency.

Professional Applications & Engineering Value

This M42 metric copper flat washer is engineered to address critical challenges in demanding industrial and electrical settings. Its high-purity copper construction delivers unmatched electrical conductivity, making it indispensable for electrical connections, busbars, and grounding systems where minimal resistance is paramount. The inherent corrosion resistance of copper ensures reliability in environments exposed to moisture, chemicals, or outdoor elements, preventing fastener seizure and joint failure. Manufactured to the DIN 7603 specification, this washer provides consistent dimensions and performance, ensuring a perfect fit with M42 screws and effective load distribution to prevent surface damage and maintain assembly integrity under vibration and thermal cycling.

Specification Summary & Compliance

This washer conforms to the DIN 7603 standard, ensuring precise dimensional tolerances for the inner diameter (42.3mm), outer diameter (48.9mm), and thickness (1.8-2.2mm). It is designed for use with M42 metric screws and is manufactured from high-quality copper for optimal performance. The product is compliant with relevant industry specifications for material and dimensional consistency.