I'm not exactly sure what you mean... but after you posted your last post I did a search, the allens that I saw before were like these.

https://www.ebay.com/itm/233253606592

But then I saw these! I had no idea these existed.

https://reverb.com/item/404931-schal...d-rose-tremolo

These would work because they are not thick. If I had known I would have just bought the ones on reverb. I thought Schaller only made the thicker ones back when I did the bridge install.