Replica of the extrusion inserts that came with the Creality Ender-5 S1 Pro acrylic panel kit.

I lost some and figured there's a chance others may suffer the same fate.

I recommend printing in orientation pictured (and should be model's default). Small amount of support required for the underside of the prong (see picture). Only minor bridging required without.

Print pictured was printed with a 0.4mm nozzle, probably would be fine with 0.6mm too.

If you have also lost the square nut a normal M5 hex nut should fit too. That's what I used.