The 031-80108: It comes as a 3-piece kit: the connector body, a crimp contact, and a ferrule, so you don't have to source those separately. The 500 mating cycles mean it holds up under repeated reconnects in patch panels or field test gear.
Cable Fit and Termination Checklist
This plug is built for Belden 8281 — a precision 75 Ohm broadcast coax with a solid polyethylene dielectric and a 0.060-inch centre conductor. The shield is crimped through the ferrule, and the nickel-plated phosphor bronze body takes the strain. Free-hanging (in-line) mounting, no panel hole needed.