I use a Lerdge board on this and wanted to have dual Z axis endstops to keep my bed level.

You will need:

2 brackets
4 x M2*12mm socket cap or button cap screws

4 x M2 nuts

4 x M4*10mm button cap screws

4 x M4 Tnuts
2 mechanical switches found here:

https://www.amazon.com/gp/product/B07MW2RPJY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1