Snap Together Mini Flange Mount ABS Plastic Boxes from Tronixlabs Australia have snap fit lids which allow access to internal circuitry without unscrewing the flange screws.
Great for small circuits, control boxes, relays and industrial controls. Base fitted with four PCB posts, lid has four cable entry mouldings which may be knocked out if required. All dimensions ±0.5mm & exclude flanges. UL 94-HB