ISO 10642 is the standard for hexagon socket countersunk bolts. DIN 7991 is its predecessor, which has been withdrawn in 1992.
It consists of 121 unique sizes from M3 to M20 and comes in six materials. The latest revision is from 2019 and you can purchase the standard from ISO here.
One-time investment. No maintenance fees.
121 sizes * 6 materials
= 726 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European engineers are fond of DIN standards, buy many DIN standards for fasteners were withdrawn in 1992.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Lock and spring washers like DIN 125 and DIN 6798 have been withdrawn without an ISO replacement, most likely because they don't work well.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.