S-97310A116 10.5 mm ID x 25 mm OD DIN 7349 Oversized Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
• Superior load distribution across a 25mm outer diameter, minimizing surface pressure and preventing joint loosening.
• High material hardness (Rockwell B76) ensures the washer maintains shape under heavy loads, providing reliable, long-term performance.
• Precise dimensional fit with a 10.5mm inner diameter designed specifically for M10 screws, ensuring easy installation and secure fastening.
• Compliance with DIN 7349 guarantees consistent quality, dimensional accuracy, and interchangeability in metric assemblies.
• Environmental regulation adherence via RoHS 3 and REACH compliance, making it suitable for use in regulated markets and eco-conscious projects.
• Versatile industrial application due to its durable build, suitable for machinery, automotive, and construction assemblies requiring a robust flat washer.

Professional Applications & Engineering Value

This M10 metric flat washer is engineered to address common industrial challenges such as corrosion, joint fatigue, and uneven load distribution. The zinc-plated steel material provides a protective barrier against moisture and chemicals, significantly reducing the risk of rust in demanding environments like outdoor machinery or automotive underbody applications. Its compliance with DIN 7349 ensures precise dimensions and consistent performance, which is critical for maintaining assembly integrity in high-vibration settings. By distributing clamp load evenly across a wider surface area, this washer helps prevent bolt loosening and surface damage, making it an essential component for heavy-duty industrial fastening where reliability and longevity are paramount.

Specification Summary & Compliance

This flat washer conforms to DIN 7349 standards, with an inner diameter of 10.5 mm, outer diameter of 25 mm, and thickness ranging from 3.7 to 4.3 mm, ensuring precise fit for M10 screw sizes. It meets Rockwell B76 hardness for durability and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally sensitive and regulated industrial applications.