XT60 heat plate mount for strain relief

This thing will securely hold an XT60 connector on the side of my printer's heated bed, so that the wires going to the solder pads cannot be stressed by anyone or anything pulling on these wires, and so that the heated bed will be removable for maintenance or whatever.

To this end I used an XT60 connector, which is rated to support way more current than will flow through these wires to the heated bed. I designed this plastic mount to hold the XT60 connector firmly, using a screw hole that is