Abstract: A mounting assembly for fastening a device housing onto a panel includes a housing and a clamp. The panel defines a front surface, a rear surface, and an opening extending therethrough for receiving the housing. The housing includes at least one wall sized to extend through the opening. The wall defines a bearing surface. The clamp includes a beam member and a head member. The beam member extends from the wall at a first end. The beam member is biased to deflect outwardly with respect to the wall at an oblique angle. The head member extends from a second end of the beam member and includes a first cam surface for engaging the rear surface of the panel and a second cam surface for engaging the bearing surface of the housing.

Abstract: A mounting assembly is provided for fastening an HMI housing onto a panel. The housing includes a slot that is sloped with respect to the panel. A clamp is provided having an outwardly extending pin and connected flange that is inserted in the slot. The clamp is translated along the slot until engaging the panel wall, at which point the clamp is rotated in the slot to lock the clamp in position.