A threaded rod connector is a type of fixing that looks a lot like an elongated nut. They are threaded on the inside walls and can be affixed onto a length of screw rod in the same way as a standard nut.

Also called threaded rod end fittings, coupling nuts, and threaded rod end connectors, these are threaded internally, like a nut. In fact, metal rod couplers look like elongated nuts. One end of a threaded rod screws into the connector, or coupler, and the second rod screws into the other end.