CU Snap Utility Boxes Bud Industries CU Snap Utility Boxes have a sturdy and cost-effective design for small printed circuit board use or as a potting box. The CU boxes feature a snap-fit cover for easy assembly and a flanged base with mounting holes for wall mounting. Cable outlets are designed into the cover and can be easily cut open. The CU Snap Utility Boxes from Bud are constructed of high impact ABS UL94-HB (-20°C to +70°C) and come in two colors: Black (Pantone black u), and White (Pantone 420c).