K&M Thumbwheel Alu BK

What can I say ? Nice ! Well made ! Does what it says ! Scores 10 out of 10. I like the finish - nice matt black !
I find these are essential on my boom arms, not only to stop the arm falling through the clamp, but also to lock down any connecting microphone clamps. Other information you may find useful - the diameter is 22.35mm and the thickness is 3.5mm.

Threads onto 3/8" microphone stand threads - the narrower standard favoured outside of the US. Mainly use on telescopic boom arms to prevent the final section sliding inside of the previous section. Other uses can be found: I use a couple of them to fix mic clips in place on 3/8" threaded bars for a Jecklin disc. Keep a few spare for odd jobs. Well made and good value.

Fits on the end of mic stands and helps to lock things in place.

This is the narrow size, I think it is 3/8" inch.

If you don’t want to feel screwed by screws or mounts mysteriously loosening themselves, then this is the ideal “locking” nut, preventing you from going nuts on set. Black color helps suppressing blinking reflections from powerful stage lights; although black Gaffa will have a similar effect, it’s one less task to do when setting up.

I used it with K&M Stereo bar with some mic holders. It works fine for my opinion!

Nice and cheap spare part for your microphone stand in case you lose it !

Unlike Chinese copies, this one doesn't have rough edges, the thread is cut properly so it doesn't jam, and someone's actually thought about the details of the design. No reason to fault it!

I’ve never had one break, but I’ve lost some (or people have “borrowed” from me), so this is one of the spare parts I buy from time to time. Besides on mic stands, I also use one of these for the top bolt on my K&M Spider keyboard stand.

I love that K&M sells all spare parts, and for fair prices. I lost two of these and could easily replace them!

Easy to fit; well cut threads and easy to use for tightening mic clips. Used it on a mic stand T-piece to tighten a boom.