4 model

Free

Knurled Thumb Nut for Ender 3, CR-10 HotEnd Fix

Thingiverse

Free

Knurled Knob with M4 insert nut

Thingiverse

Free

Open Hardware Knurled Knob for M6 Nut

Thingiverse

Free

Rostock bed level adjustment Knurled Nut

Thingiverse