Panel frames allow the simple attachment of an interface panel flush with the rim of the case. The depth of the lid allows switches, buttons, connectors and ports to stand up from the panel face. We provide the mounting bracket, fasteners and o-ring, which install beneath the panel and fit against stops molded inside the case walls. A polymer o-ring seals the panel so the case remains watertight, even with the lid open. Pre-drilled holes and stainless steel screws make fabricating a custom case faster, stronger and more accurate.