Speed Hooks for Leather Shoes / Redwings

Couldn't find a cobbler to put speed hooks on these things (and i asked 3 of them !!!), so i did it myself.
I tried to put hooks i found on a chinese website first & failed miserably, so i decided to 3D print some.

Here's my rough design, you'll need M1x7x6mm screws you can easily find on AliExpress.
HINT: use a file to share the heads of the screws once they're on the shoe, it'll avoid leather damage.