DIN 981 is the standard for lock nuts, to be used with lock washers from DIN 5406.
It consists of 47 unique sizes from size KM0 to KM 40 and KML 24 to KML 40 and comes only as plain steel. The latest revision is from 2009, which you can purchase from DIN here.
Materials in this download: Steel plain
One-time investment. No maintenance fees.
47 sizes * 1 material
= 47 files
European engineers are fond of DIN standards, buy many DIN standards for fasteners were withdrawn in 1992.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Lock and spring washers like DIN 125 and DIN 6798 have been withdrawn without an ISO replacement, most likely because they don't work well.
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.