LM2596 case for Ender 3

This is case for two LM2596 (a commonly used popular step-down regulator) to mount inside Ender 3 - near main board. My idea was to use one regulator for motherboard fan and other for the hotend fan (it can be used for replacement fan that requires lower voltage instead of 24V).

Two main bolts are 4mm used with T-nut (for frame mount) and four small bolts are about 5mm in length (without head) and 2.5mm width.