Combination connector for thru-wall or thru-roof penetrations giving rigid attachment on both surfaces — assemblies may be used in masonry construction with one end concealed. PVC sleeve is included to be adhered to roofing membrane to provide a water tight seal. Cable clamp No. 55D or No. A55D, lug No. 55B or No. A55B, or tee connector No. 42AN or No. A42AN furnished for either end (any of these connectors fit main sized cables through 9/16” diameter). For copper-to-copper connections, all components are copper or bronze except nuts and washers, which are stainless steel. For copper-to-aluminum or aluminum-to-aluminum connections, the threaded rod, nuts and washers are stainless steel. Threaded rod 1/2” diameter, standard length 24” — other lengths available upon request.