Summary

I didn't have threaded inserts, but I have a ton of M3 square nuts. I made a small modification so that M3x10 screws can be used to screw in the LCD controller.

Print Settings

Printer Brand:

Prusa

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>i3 MK4</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>0.2</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>15%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Print face down.  No supports should be necessary. Add more perimeters for added strength. </p></div>

RepRap Full Graphic Smart Controller Enclosure Screw Mount (Square Nuts)