In that case that would improve the fit since the Stanley irons are LONGER. My set is 107 years old. The straight irons had been ground to h*ll, and I had to reverse the bevel on one of them, which knocked another 3/16" or so off. Those cutters all fit fine. The concern with Stanley irons is that when in factory-ground condition they are towards the UPPER length limit of the LV plane. I purposely checked a bunch of irons that had not been previously sharpened (which is basically the definition of "NOS"), and they all fit.
"Almost" only counts in horse shoes and hand grenades. They fit, period. I'm sure LV were fully aware of the length of factory-ground Stanley irons when they designed the adjuster the way they did, and that's why the as-factory-ground Stanley iron are right up at but not over the limit.
The Stanley doesn't even *have* that bolt. So the complaint here is that an added useful feature doesn't work with a small number of 3rd party blades? Wow, that's some drawback.
The drawback that I cited (tensioner screw too far from registration face with the #10 and #32) is actually far more serious btw.
EDIT: It may be that Stanley widened the shafts of those two irons later in the production run. Can you please measure the width your #10 (1/8" plough iron) just below the slot/hole/whatever? Also is yours constant width from edge to slot/hole, or does it get wider like the narrower Veritas irons.
I said #10 and #32, not #11. The #11 has a slot and fits fine in the LV plane. If you have a basic 45 cutter set then you don't even have the #32, but I was being thorough for the benefit of others. Please read carefully before you reply.
The TWO (not one) Stanley cutters in question are so narrow (both have 1/8" shanks) that there wouldn't be enough metal on one side of a slot to resist retraction force when the blade is under tension. Using a hole instead of a slot provides support on both sides and fixes the issue. I suspect that's also why the 45 and 55 use a pin instead of a tab for adjustment in the first place.
EDIT: Added question about later-production 10 and 32 irons. See "EDIT" above.