BNC Crimp Connector
BNC Crimp Plug - straight Nickel-plated brass Crimp
This professional type of video connector, is to be used with a proper crimping tool.
Use of these allows you to make your own video cables of exactly whatever length you require. This crimp is for RG59 cable, which is much thicker, and for much longer distance.
These are supplied individually bagged, with the three component parts all in the bag.