Standard Multiboard Snaps "snap" into the Multiboard Tiles. They have a mid-hole that can be used for bolt-locking inserts or screwing in threads.

This double-sided snap is a remix of the standard flush snap and allows you to attach multiboard projects to other multiboard projects. It allows for a lot of versatility without requiring the printing of parts with snaps built into them. I use them to attach multibins to each other!

Printing Guidelines: Use 3 perimeter wall thickness, 0.2 mm layer height, 15% infill, and no supports. Apart from that, use your printer's default settings.

For more, check out multiboard.io