onelinkmore UHF Female to Female Coupler CB Radio Adapter Joiner Coax Connector SO239 PL259 UHF VHF Antenna 4 Hole Flange Panel Mount Adapter Pack of 2

This is used on a manpack setup for a 2m radio. 3/4in hole for the pass through. 1in screws work with 3/16 aluminum. Nice connectors

For the price. You think it would come with screws.

Works well, was easy to install. Just be aware that they have no mounting screws so you have to purchase those separate...which in the long run is better depending on what you are mounting for.

works