Modular Synth Lab Threaded StripsMST-STRIP-L84
A eurorack M3 threaded inserts strips fit perfectly inside eurorack rails. Threaded strips are more expensive than sliding nuts, but they allow you to place modules perfectly aligned and you will never have to be afraid of running out of mounting holes as they fill the rail completely.
Sold as single. When you need a pair, you need to add 2 strips to the basket.