2PCS UHF Female SO239 Jack 4 Holes Panel Chassis Mount Flange Solder Cup Connector

Not good quality.There is a very poor attachment of the center pin in the connector, to the dielectric.All 4 pull apart on first use.Not buying again...

Needed to solder these without an outlet nearby so I used a butane (cooking) torch. No problem. I found it works well to "tin" the inner first by putting a piece of solder in and melting that first so it coats the inside, then a tinned wire can be soldered to the center connector. I have not tried soldering the shield, but I imagine it would go smoothly.Despite my concerns that I'd lingered too long with the torch, the center insulator was fine.

If you are using these to make a J pole antenna I didn't even try to solder them until I ground off the chrome with a dremel. They soldered up great without any melting issues to the nylon and that's using a propane torch to do it.

Very poor quality. The plastic insulator is not firmly attached and pulls loose. It can be glued into place, but that certainly shouldn't be necessary.

Umm, the center contact is too large. Won't make contact with any of my PL259s. Will have to bend the fingers together.

This part installed without melting the insulator material.

Good quality and just what Ineeded for my project.

Actually these were ordered for a ham radio "maker" demonstration. probably will not be put to actual use. So in that respect... they will be put to good use.