S-98689A118 13 mm ID x 20 mm OD DIN 433; ISO 7092 General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring longevity in harsh or humid environments.
• Precise dimensional fit with 13mm ID and 20mm OD, designed specifically for M12 screws to prevent loosening and misalignment.
• Enhanced load distribution due to the 1.8-2.2 mm thickness, reducing surface pressure and preventing damage to assembled components.
• High hardness rating of Rockwell B76 for excellent wear resistance and durability under repeated stress.
• Compliance with international standards including DIN 433 and ISO 7092, ensuring consistent quality and interchangeability.
• Eco-friendly and safe with RoHS 3 and REACH compliance, meeting strict regulations for hazardous substances.
• Reliable performance in demanding applications, from machinery to structural assemblies, thanks to robust material and precise engineering.

Professional Applications & Engineering Value

This M12 metric flat washer is engineered to address common industrial challenges such as component wear, corrosion, and fastener failure. Made from 18-8 stainless steel, it offers excellent resistance to rust and chemicals, making it ideal for use in automotive, construction, and marine environments where exposure to moisture is frequent. The flat washer design with precise inner and outer diameters (13mm ID and 20mm OD) ensures even load distribution, preventing surface indentation and extending the life of connected parts. Compliant with DIN 433 and ISO 7092 standards, this washer provides reliable performance in heavy-duty applications, reducing maintenance needs and enhancing overall assembly integrity. Its Rockwell B76 hardness further supports durability, making it a trusted choice for engineers seeking long-term solutions in precision fastening systems.

Specification Summary & Compliance

This flat washer features a 13mm ID, 20mm OD, and 1.8-2.2 mm thickness, adhering to precise dimensional tolerances as per DIN 433 and ISO 7092 standards. Manufactured from 18-8 stainless steel with a hardness of Rockwell B76, it meets rigorous industry specifications for mechanical performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global supply chains.