Why do I use pre loaded shrapnel in my application?

Pre installed shrapnel provides equal force through smaller compression and provides stable electrical contact by minimizing deviation. These features are very useful for highly limited applications.
The shrapnel is usually the last component added to the board. The type used depends on the available height and space on the board, but the final decision is usually based on your design needs.
Yes, an application can use multiple types of shrapnel. For example, a simple C-type can be used to ground between the device and PCB, while multiple pre installed shrapnel can be used on the board to provide a shielding layer or other simple connection.
Scalable shrapnel takes up a moderate amount of space, making it easy to make simple design changes without requiring any additional space.