M10x1.0 hose barb

thingiverse

This is a fitting for bench bleeding a brake master cylinder. It screws into the port on the master cylinder so you can run a piece of tubing back into the reservoir. It has M10 x 1.0 mm threads on the body, and the barb is sized for 3/16" ID tubing. I printed it with 0.10 mm layer height and 100% infill using PETG and it screwed right in. I'm attaching the Fusion 360 file in case you want to change it.