ISO 7094 is the standard for extra large washers. It replaces DIN 440, which was withdrawn in 1992. ISO 7089 is for normal washers, ISO 7092 for small washers.
It consists of 15 unique sizes from M5 to M36 and comes in four materials. The latest revision is from 2000. You can purchase the standard from ISO here.
15 sizes * 4 materials = 60 files
Materials in this download: Stainless steel A2, Stainless steel A4, Steel 100HV plain, Steel 100HV zinc

One-time investment.
No maintenance fees.
Yours to use, forever.
SOLIDWORKS version:
Sytze Spijksma - Group leader Mechanical engineering - DEMCON
European engineers love DIN standards, but most DIN standards were withdrawn in 1992. Most of them have an ISO replacement.
We only offer fasteners for active standards because we purchase the standard document and use it as a source for our fastener models.
Lock and spring washers do not work well so their standards are withdrawn without a replacement.
We were tired of scrolling through endless lists of fasteners in SOLIDWORKS, so we built Lightning. Lightning makes it easy to add, edit and replace fasteners.
Just open the filter, pick a type, size and material, then drag the file into your assembly. Lightning will add a washer and/or a pattern for you.
