These work surface brackets from Hafele have a load capacity of 500 lbs. per pair when mounted on 16" centers. The brackets have a notching system for easy alignment and come in two arm lengths so that one brace can be use for two different sized countertops. The heavy-duty folded steel design gives the brackets strength. Two conduit holes run power and communication cables independently. The countersunk screw holes allow the screws to be mounted flush. The work surface brackets have an epoxy-coated steel finish.