S-90437A240 3.2 mm ID x 8 mm OD DIN 125 Adhesive-Back Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments.
• Secure and reliable bonding provided by the 1 mm thick acrylic adhesive layer, preventing loosening under vibration.
• Precise fit for M3 screws with a 3.2 mm inner diameter, ensuring easy installation and optimal load distribution.
• Excellent durability and surface protection thanks to a Rockwell B70 hardness rating, resisting wear and deformation.
• Stable performance across a wide temperature range from 50°F to 200°F, suitable for various operational conditions.
• Guaranteed dimensional accuracy and interchangeability through compliance with the DIN 125 standard.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This M3 flat washer made from 316 stainless steel is engineered to solve critical challenges in demanding industrial applications. Its exceptional corrosion resistance makes it a top choice for chemical processing, marine, and food-grade equipment, where exposure to aggressive substances is common. The integrated acrylic adhesive ensures the washer remains firmly in place during assembly and operation, effectively preventing back-off due to vibration—a common failure point in machinery and automotive components. Manufactured to the DIN 125 standard, it guarantees precise dimensions and a perfect fit for M3 screw fastening systems, providing reliable load distribution and surface protection. This combination of material integrity and adhesive technology delivers long-term reliability, reducing maintenance needs and downtime in professional settings.

Specification Summary & Compliance

This washer conforms to the dimensional and tolerance requirements of the DIN 125 standard, ensuring precise fit with an Inner Diameter of 3.2 mm, Outer Diameter of 8 mm, and Thickness of 0.8 mm. It is manufactured from 316 Stainless Steel with a hardness of Rockwell B70 and includes a 1 mm Acrylic Adhesive layer. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in environmentally conscious and regulated industries.