A spacing bracket for fixing doors that fail to latch. I've included an OpenSCAD customizer file if it's any use to anyone else.

STL file dimensions as follow:

thickness = 3;
outer x = 18.5;
outer y = 56;
inner x = 12;
inner y = 24;
screw diameter = 4.5;
screw seperation = 41.5; (From centre to centre).