Hollow square mount recognition
These aren't the switches you're looking for? Got a different keycap mount? See switch recognition for other mounts. Many known switches will be missing; if in doubt, ask the forum.
This page covers switches where the slider is negative (hollow, receiving a post in the keycap inside a slot) and square in cross-section. The switches on this page are not all mutually keycap-compatible.
Hi-Tek and Stackpole
Hi-Tek High Profile, waffle frame
Hi-Tek High Profile, flat-top
Hi-Tek lock, waffle frame, type 1
Hi-Tek lock, waffle frame, type 2
Hi-Tek lock, flat-top
Stackpole switch grid, type 1
Stackpole switch grid, type 2
Mitsumi
Mitsumi miniature mechanical, tactile
Mitsumi miniature mechanical, linear
Mitsumi standard mechanical, Type 2 Mitsumi mount, tactile
Mitsumi standard mechanical, Type 2 Mitsumi mount, latching
Other
Micro Switch SD Series, variant