The title asks it all: What would be the best way of doing that? I'm trying to build a 1/4" wave groundplane antenna for 127 MHz using 1/8" brass rods as elements. I tried a tap-and-die set to thread the rod stock for the four holes used to mount the connector to the chassis but brass being so soft, the nuts stripped the threads silly, so I suspect tack-welding them into the holes in my next option? (I thought of using a torch and solder, but I'm afraid I'll melt the insulator inside the connector.) The radiator's diameter is a little wider the than connector's center pin so again, same problem: how to attach it? After all is said and done, the antenna will be placed inside a PVC pipe cap then sealed with some kind of goo--any recommendations for that as well? (I thought of JB Weld since _nothing_ can get through that!