Simple Cup Pull

This is my very first from-scratch design using TinkerCAD. I needed a simple cup pull (such as those used on drawers) but couldn't find anything to download that would meet my needs. I'm actually going to use two of these as grab handles mounted to either side of bottom of my Plexiglass printer enclosure in order to make it easier to lift on and off of the platform. I'm amazed at how strong this handle is even in PLA at 15% infill. I would have used a lot less infill but it didn't seem to drop the print time by much in Cura.

This handle is about 150mm long by 30mm high by 30mm deep. There's a thick handhold to assist in holding on to the bottom edge. I printed it hole-side down (for the sake of better threads) without supports, and the handhold sags a bit but still works fine for my needs. You may want to use supports or flip the model so that the handhold is on the printbed if you want a better handhold.

The mounting holes are supposed to be for 4mm x 8mm metric screws. I don't