I know that this has been answered already, but thought I'd toss out
dimensions for my early #1 (Logos are logo TmA.1 (circa 1872 - 1874), on
the blade and chip breaker)

Stanley #1 Cap Iron to Blade screw dimensions

Head OD 0.49 to 0.52, call it 0.5"
Head height 0.16"
Slot width 0.055"
Slot depth 0.125"
threaded length 0.182"
Thread OD 0.31"
18 TPI

Kirk in Half Moon Bay, CA, off to another week of real work

On Wed, May 24, 2023 at 5:49 PM Frank Filippone 
wrote:

> I am now finding that the toy plane has parts that are both not compatible
> with other planes snd rarer than the complete gadget.
> I have decided to have a cap screw made for me. But with none to copy, i am
> still in trouble.
> May I ask someone who has a Stanley #1 to measure the cap screw head
> diameter?
> And if I get really lucky, the thread pitch. 20 or28 ???
> Thank you
>
>


-- 
Kirk Eppler in Half Moon Bay, CA