Drybox filament guide for inside box

This is part is to be matched up with "Drybox passthrough for 1/8 NPT/M10 and M6 Bowden/PTFE fitting" (https://www.thingiverse.com/thing:2813539). It is meant to be opposing the other part on the other side of a board. The nipple that goes through the board is 10MM long.

1/21/19 - Also forgot to mention that I used M3 socket head cap screws with this. They will fit the countersunk hole just right and will be flush with the top.