S-93849A102 4.3 mm ID x 10 mm OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced load distribution with precise 4.3mm ID and 10mm OD, reducing surface pressure and preventing fastener loosening.
• Excellent mechanical durability provided by Rockwell B83 hardness, ensuring long-term performance under stress.
• Reliable dimensional accuracy for M4 screw compatibility, facilitating quick and secure assembly in metric systems.
• Compliance with strict environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains.
• Versatile thickness range (1.5-2.4 mm) allows for flexibility in meeting specific application spacing requirements.
• Broad industrial applicability due to its flat washer design, supporting everything from machinery to electrical enclosures.

Professional Applications & Engineering Value

This M4 flat washer is crafted from 18-8 stainless steel, offering exceptional resistance to rust and corrosion, which is critical in demanding settings like marine, chemical processing, and outdoor equipment. Its metric dimensions (4.3mm ID and 10mm OD) ensure a snug fit on M4 screws, minimizing vibration-induced failures and enhancing joint integrity. The flat washer design evenly distributes clamping force, protecting surfaces from damage and extending the life of assembled components. Ideal for industrial applications requiring reliability, it addresses common issues such as galvanic corrosion and mechanical wear, while its RoHS and REACH compliance supports sustainable manufacturing practices without compromising on performance.

Specification Summary & Compliance

This washer features precise metric sizing with an inner diameter of 4.3 mm, outer diameter of 10 mm, and thickness ranging from 1.5 to 2.4 mm, designed for M4 screw sizes. Manufactured from 18-8 stainless steel with a hardness of Rockwell B83, it adheres to standard metric flat washer specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.