Discount smart controller case mount

A mount to attach Reprapdiscount smart controller cases like this one http://www.thingiverse.com/thing:702421 or this http://www.thingiverse.com/thing:35438 to aluminum 2020 extrusions. To mount it you need 2 4mm x 8mm screws and 3 4-40 x 1/2" or 3mm x 15mm screws and the appropriate nuts.