S-97280A125 4.3 mm ID x 14 mm OD Finishing Washers

Key Features & Benefits at a Glance

• Lightweight aluminum construction reduces overall assembly weight without sacrificing performance, ideal for applications where weight savings are critical.
• 90° countersink angle ensures a perfectly flush surface finish, eliminating protrusions and improving aesthetic and functional integration.
• Precision metric dimensions (4.3mm ID x 14mm OD x 2.3mm height) guarantee consistent fit and reliable performance with M4 fasteners, reducing installation errors.
• Inherent corrosion resistance of aluminum extends service life in humid or corrosive environments, lowering maintenance needs.
• Compliance with DIN 6797 standard ensures interchangeability and reliability in industrial and mechanical assemblies.
• RoHS 3 and REACH compliance meets stringent environmental and safety regulations, supporting sustainable manufacturing practices.
• Optimized for flush mounting enhances aerodynamic and safety profiles in applications like enclosures and panels.

Professional Applications & Engineering Value

This M4 aluminum countersunk washer is engineered to address common industrial challenges such as uneven surfaces and weight constraints. Its 90° countersink angle and precise metric dimensions allow for seamless integration in flush mount applications, preventing screw head protrusion that can cause snagging or airflow disruption. Made from aluminum, it offers excellent corrosion resistance, making it suitable for environments exposed to moisture or chemicals, such as in aerospace, electronics, and automotive assemblies. By adhering to DIN 6797, it ensures consistent performance and ease of sourcing, reducing downtime and improving assembly line efficiency. The lightweight nature further supports applications where reducing mass is essential, such as in portable devices or high-performance machinery.

Specification Summary & Compliance

This washer features precise metric dimensions with an ID of 4.3 mm, OD of 14 mm, and overall height of 2.3 mm, designed for M4 screw sizes. It conforms to the DIN 6797 standard for countersunk washers, ensuring dimensional accuracy and reliable performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its adherence to environmental and health safety standards without the use of restricted substances.