Thomas & Betts TC723A 1 Inch EMT Set-Screw Connector, Steel, UL E16592

Yes. The TC723A is sized for 1 inch EMT (electrical metallic tubing) and uses a set screw to grip the tubing, so no threading of the conduit is needed. It is not for rigid or IMC conduit, which uses threaded fittings.

It does. The TC723A is an insulated-throat set-screw connector, so conductors pulled into the box bear on a plastic insert rather than a bare steel edge. That is what the INSUL designation on the part refers to, and it is what inspectors look for when conductors are pulled through a fitting.

Steel body with a zinc plated finish. The plating gives it corrosion resistance for normal indoor and dry-to-damp interior runs. For wet locations or direct outdoor exposure you want a fitting specifically rated raintight, since a standard set-screw connector is not.

The TC723A is the set-screw type: faster to install, lower cost, and the normal choice for dry indoor branch circuit and feeder work in commercial buildings. Go to a compression (raintight) connector instead if the run is in a wet location, outdoors, or anywhere the job spec calls out concrete-tight or raintight fittings. Set-screw fittings are not rated for those conditions.

TC723A, Thomas & Betts. That is the full catalog number for the 1 inch steel insulated-throat set-screw EMT connector, and it is the only size this part number covers.

The TC723A is a steel set-screw EMT connector sold each, and a standard EMT connector of this type ships with its locknut for securing the fitting through the knockout. If your box requires bonding to a grounding path beyond the locknut, order grounding locknuts or bonding bushings separately.

Selling unit is each, so you can buy a single TC723A rather than a full carton. Useful for service and MRO work where you need a handful of 1 inch fittings rather than a case.