Those endstop holders are remix of MPCNC Endstop Clamp https://www.thingiverse.com/thing:1077227

My endstops are different in size and i needed to adjust that in this design

Two M2x12 and M2 nuts are needed to mount the endstop.

My endstops :
https://www.aliexpress.com/item/32891066078.html?spm=a2g0o.productlist.0.0.662d28b88XwVFo&algo_pvid=59f7c4aa-475a-4a94-b62b-fc7620965808&algo_expid=59f7c4aa-475a-4a94-b62b-fc7620965808-19&btsid=a5513e93-bc85-4964-ad9e-47950e6c2bf0&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_55