Combination connector for thru-wall or thru-roof penetration giving rigid attachment on both surfaces — assemblies may be used in masonry construction with one end concealed. Neoprene washers are included to provide a moisture seal. Cable clamp No. 55D or No. A55D, lug No. 55B or No. A55B, or tee connector No. 42A or No. A42A furnished for either end (any of these connectors fit main sized cables through 9/16” diameter). For copperto-copper connection, all components are copper or bronze except nuts and washers which are stainless steel — for copper-to-aluminum or aluminum-to-aluminum connection, the threaded rod, nuts and washers are stainless steel. Threaded rod 1/2” diameter, standard length 24” — other lengths available upon request.