S-97725A250 12.2 mm ID x 15.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior electrical conductivity ensures reliable current flow in electrical systems, reducing energy loss and improving performance.
• Excellent corrosion resistance extends service life in harsh environments, minimizing maintenance and replacement costs.
• Non-sparking properties enhance safety in volatile applications, preventing ignition risks in automotive and industrial settings.
• DIN 7603 compliance guarantees dimensional accuracy and interchangeability, ensuring consistent fit with M12 screws.
• Precise thickness range (1.3-1.7mm) provides optimal compression for effective sealing in plumbing and thermal systems.
• Durable copper construction offers long-term reliability under thermal cycling and mechanical stress.

Professional Applications & Engineering Value

This M12 metric copper flat washer is engineered to address common industrial challenges, such as electrical grounding failures and corrosion-induced downtime. Made from high-purity copper, it delivers exceptional electrical conductivity for grounding and bonding applications in electrical panels and machinery. The flat washer design with precise inner and outer diameters (12.2mm ID, 15.9mm OD) ensures uniform load distribution, preventing loosening in vibrating environments like automotive engines. Its corrosion-resistant properties make it ideal for plumbing and marine systems, where moisture exposure is frequent. By meeting DIN 7603 standards, this washer provides reliable sealing in thermal management and non-sparking safety in fuel-related assemblies, reducing operational risks and enhancing system longevity.

Specification Summary & Compliance

This washer adheres to DIN 7603 specifications, ensuring precise dimensional tolerances for consistent performance. Key metrics include an inner diameter of 12.2mm, outer diameter of 15.9mm, and thickness ranging from 1.3–1.7mm, compatible with M12 screw sizes. Manufactured from copper, it supports compliance with industry standards for electrical and sealing applications, though hardness is not rated. It is suitable for use in systems requiring reliable metric hardware and aligns with general quality benchmarks for industrial components.