I'm not looking at my REO; buuuuuuuuuuut, if one were to drill through (instead of just sending it in to Rob like he offered), is there enough thickness in the delrin to invert the thing? Meaning: drill through, countersink the aluminum back for a flat head screw (same diameter as existing, so pretty small), and then form a little recess in the delrin for a small nut?