S-95211A154 5.5 mm ID x 18 mm OD DIN 440-R Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction, ideal for marine, chemical, and outdoor applications.
• Precise dimensional fit with 5.5 mm ID and 18 mm OD, ensuring reliable performance and secure fastening for M5 screws.
• Enhanced load distribution and surface protection due to flat washer design, reducing wear and extending assembly life.
• Compliance with DIN 440-R standard guarantees consistent quality, interchangeability, and engineering reliability.
• RoHS 3 and REACH compliance ensures environmental safety and restricts hazardous substances, supporting sustainable procurement.
• Durable and non-magnetic properties of 316 stainless steel provide long-term stability in demanding industrial settings.
• Metric system compatibility simplifies integration with global machinery and equipment, streamlining maintenance and repairs.

Professional Applications & Engineering Value

This M5 DIN 440-R flat washer made from 316 stainless steel addresses critical challenges in corrosive and high-moisture environments, such as chemical processing plants, marine equipment, and food industry machinery. Its metric dimensions (5.5 mm ID, 18 mm OD) ensure precise alignment and uniform pressure distribution, preventing loosening and surface damage under vibration or thermal cycling. By utilizing 316 stainless steel, the washer offers excellent resistance to pitting and crevice corrosion, reducing maintenance costs and downtime. Ideal for industrial washers applications, it supports robust fastening solutions where reliability and compliance with international standards like DIN are paramount for safety and performance.

Specification Summary & Compliance

This flat washer features a 5.5 mm inner diameter, 18 mm outer diameter, and thickness ranging from 1.7 to 2.3 mm, designed for M5 screw sizes. It conforms to the DIN 440-R specification for dimensional accuracy and performance. The product is manufactured from 316 stainless steel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards without rated hardness specifications.