Abstract: A weld-down base conforms to a surface to support other objects, such as cables, motors, water tanks, etc. The base has at least one keyhole shaped hole, with a first portion and a second portion. On the top side of the base, the first portion of each hole is large enough to pass the head of a bolt; the second portion is only large enough to pass the shaft of the bolt but not the head. However, the second portion is stepped near the exit side to be wider so that the bolt head can be inserted into the wider first portion and then slid laterally to the second portion where the step will hold the bolt in place with its threaded shaft extending from the base. The exposed bolt allows objects such as clamps, brackets, signs, lighting, fire extinguishers, hoses, instruments, and so on, to the supporting surface.