The enclosure models are available on Onshape for viewing, editing and exporting. Printing with PLA+ may provide better strength than regular PLA.
** Variant 1 (Easier) - self tapping plastic threads. Easier to source. Screws: Hex socket head cap, M2.5 x 10mm. https://www.aliexpress.com/item/10000139502321.html https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/v/919d1c8c2464819c6bc56821/e/96371cb25b019416be0a198b
** Variant 2 - metal threaded heat inserts Heat threaded inserts: M2.5, 3.5mm OD, 3mm length. https://www.aliexpress.com/item/4000688982018.html Screws: Hex socket head cap, M2.5 x 10mm. https://www.aliexpress.com/item/10000139502321.html https://cad.onshape.com/documents/58d3fc7e6c256c4f6a684caf/v/9748de4b75ec777ad8fbd9ed/e/96371cb25b019416be0a198b
Important: Clean the 3D print to have a clean and flat surface for the TFT front surface interface.