Almost certainly 1/4-20 thread. I know some of my Rogers stands use a bigger thread which I believe is 5/16-24 (might be 5/16ths-18). The next size up is 3/8th-16 or 24. It pretty much has to be one of these. I know that doesn't narrow it down that much but it's a start.

Thanks K.O.

So If I understand you, 1/4 inch refers to diameter of the screw and 20 is the per inch thread count. Correct?

Correct!

-Mark

Thanks, Mark!!

Any of those should be available at any full line hardware store so you could buy a short bolt in each of those sizes (for very little $) and then use those to determine which is the size you need.

Looking at one of a vintage Rogers cymbal stand I have it appears that the ones I have are 5/16-18. The next size smaller would be 1/4-20 which was the thread size most often used by American companies for their hardware.

Here is a Rogers 5/16ths next to a generic 1/4-20 bolt. If the bolt you seek is smaller than the others on your stands it almost has to be that size.

Super information K.O.!

I've tried all the "butterfly" wing screw/bolts on my Swivo Hi-Hat and Cymbal stands and they are all too thick. Thank you for your input. I will get to a hardware store and find a bolt that works so I know what size to look for on Ebay.

Kurt

In the 1960s, when the band was travelling and I needed a bolt or screw or nut for my drums, small town hardware stores were where I would find a widget to patch up whatever had broken. The music stores were usually of no help. My Rogers Swivomatic drum hardware had so many nuts and bolts and screws that, at times, would wear out or fall out. And, Mom and Pop hardware stores came to the rescue in West Nowhere Iowa.

Yes, back in the day, Americans were making things that were designed to be repairable if need be. You could usually get any replacement nut or bolt from the corner hardware store. None of this metric crap and nothing made from Chinesium. We didn't care what anyone else was doing in manufacturing because we knew we were the best and everyone was looking at us and coveting our designs and high quality.

I also collect old Emerson electric fans and the same thing applies. No one was expected to have to special order something like a screw if one went missing. Manufacturers of all kinds of products got their nuts and bolts from "ACME" incorporated (The same company that Wile E. Coyote used!) ;) and that's what everyone used. But seriously, when you look close at old stuff vs new stuff, even at a molecular level, there's really no comparison. The steel was better. Threads didn't strip as easily. I think even the way the threads used to be cut on old screw making machines was different. I think that they actually had to spin the screws and have a cutter shave away the metal. Now, I think they just cram some powdered metal-like substance into a mold and compress it. That's why, when you torque down on one of those things too much, you end up snapping it off. It's more like potato chips than it is steel...but I digress.

After years of observing drum hardware failing due to plastic inserts cracking and pot metal threads stripping, I have returned to vintage hardware that is simply SOS (steel on steel). Problems solved.