FreePrintrbot+ captive nut keeper
Thingiverse
7 model
Free
FreePrusa i3 / P3Steel captive nut for easier bed leveling
Thingiverse
Free2020 extrusion + captive nut + clamp
Thingiverse
FreeMPCNC Middle Joiner M3 Captive Nut Remix
Thingiverse
Free1/4 inch 20 thread captive nut knob
Thingiverse
FreeHelical Gear Bed Level Knob with Captive Nut
Thingiverse
FreeMPCNC -Add On- Dewalt DW660 Mount M3 Captive Nut Remix
Thingiverse