More unidentified hardware

[4MoreYearsOhNo]

These are metric, so definitely not American. And probably not that old. I have a few of the arms, but I'm not even sure the knurled arm is meant to go with the ring (though they have the same thread along with the bolts I added). Metric M10x1.5.

Anyone recognize where these would have come from, and where they belong? Just trying to organize the remaining unidentified parts I have.

 

[dtk]

hmm....they look a little like bongo tuners but not quite. It also reminds me of an L arm the Tama metronome (rhythm watch?) had as an option to mount it

Is the threading and size the same as a cymbal mount?

I'd imagine they're from one of those percussion like mounts https://www.ebay.com/itm/1856632226...h41Ri+x9WzgwQKk9wI/g8uVOU=|tkp:Bk9SR5r7xc6YYQ

 

[1988fxlr]

They look like North rack tom mounts, although I don’t know if mine are metric

 

[1988fxlr]

My rack is all mix and match parts but some of them look like a good match, but they are 9.5mm/ 3/8” rods on mine and seem to use sae 3/8” bolts with 11/16” heads. My drums are the made in Italy era, but maybe they did change the racks at some point?

 

[4MoreYearsOhNo]

That must be it, thanks! They measure about 3/8", but are metric on mine. Metric from Italy would also make sense. I wonder if yours are actually metric. I tried a 3/8x16 bolt and that actually threaded in and would work to tighten the ring, so maybe some of your bolts were replaced? Anyway, this is certainly it. Mystery solved!