S-98690A116 13 mm ID x 20 mm OD DIN 433; ISO 7092 General Purpose Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 316 stainless steel construction, ideal for harsh chemical and marine environments
• Superior load distribution with precise 13mm ID and 20mm OD dimensions, preventing surface damage and bolt loosening
• Enhanced mechanical durability with Rockwell B76 hardness, maintaining shape under high-pressure industrial applications
• Guaranteed dimensional accuracy through compliance with DIN 433 and ISO 7092 standards for reliable fit with M12 screws
• Long-term operational safety with RoHS 3 and REACH compliance, free from hazardous substances
• Optimized thickness (1.8-2.2mm) providing consistent spacing and vibration resistance in metric assemblies
• Broad industrial compatibility as a metric flat washer suitable for machinery, construction, and chemical processing equipment

Professional Applications & Engineering Value

Engineered for demanding environments, these M12 flat washers in 316 stainless steel address critical challenges in industrial assembly. The high chromium and nickel content provides superior corrosion resistance, making them essential for offshore, chemical processing, and food-grade applications where moisture and aggressive agents degrade ordinary washers. Their precise metric dimensions (13mm ID, 20mm OD) ensure perfect alignment with M12 screws, distributing clamp load evenly to prevent joint failure and surface indentation. Compliance with DIN 433 and ISO 7092 standards guarantees interchangeability and reliability in European and global machinery projects, while the Rockwell B76 hardness maintains structural integrity under cyclic loading—solving common issues of deformation in heavy-duty washers.

Specification Summary & Compliance

This flat washer features a 13mm internal diameter, 20mm outer diameter, and 1.8-2.2mm thickness with manufacturing tolerances per DIN 433 and ISO 7092 standards. Material certification confirms 316 stainless steel composition with Rockwell B76 hardness. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental and safety adherence for industrial distribution.