Screwless Fan Joiner/Holder/Connector Compatible with 120mm and 140mm fans

I ran out of fan screws and noticed that the PLA+ filament that I used far strong enough that screws aren't needed. I made a project using 8 fans. after quickly running out of screws I made these screwless connectors. They are a very tight fit and it was slightly difficult when initially assembling them. I did end up figuring how to attach them in about 5 seconds each though.

I took his design, gave it a tighter fit and added nubs in the screw hole place. This makes it screwless.