Edit: Updated design (V7) to move the post away from the hole by 5 mm. It was interfering with the T-nuts when trying to install.

Another limit switch bracket. Looked at a bunch but none fit my switches or design ideas. The pins hold the switch in but are delicate if you try to remove the switch after installing it. Designed to be held in place by a single M4 screw and T-nut, the knob fits into the V-slot to keep the bracket from rotating. Fusion 360 source file included if you want to play with it.