These RCA chassis mount jacks are assembled on a rectangular black plastic insulator solder terminal.
Plug your power supply into one end and the other into your project and, just like that, you've got a power switch! The on-off rocker switch has a good stiff 'click' to it, so it isn't easy to accidentally switch. It's also fairly small so it won't add too much unnecessary bulk to your project.
These Zero Insertion Sockets are ideal for multiple insertion/extraction applications. Standard size pins fit in common solder and breadboard holes.
Locking tabs-Tinned contacts-Keyed mounting posts-Memory module sockets.