The file 'Insert For 1.75 Pneumatic Connector For “Angled Dry Box Filament Guide” 3D Printer Model' is (stl) file type, size is 1.0MB.
Insert for 1.75 pneumatic connector for "Angled dry box filament guide":
https://www.thingiverse.com/thing:2896547
Use a wrench or plaier to screw the connector to the bolt.
You may need a drop of oil on the nut.
bolt.stl | 5.0MB | |
nut.stl | 3.8MB |