Pretty much what I figured, though I get a chuckle from descriptions like 'OMF' and 'BSA'. Great ones Rudyard!Most all such 'Native' made screws the threads are from' eyeball made taps & dies ' no standards . No relation ship to WW or NC. I refer to such as ' OMF '&' BSA.' viz 'Outer Mongolian Fine '&' Bizantium Standard Acme 'in this little different to old European threads . If you get a stick to turn in a tapped hole then file out a steel rod to match it this once flatted & hardened will cut you a thread into a piece of steel drilled so you form a die. again make cutting faces then harden them all & off you go period thread . but so long as the originals will function use those . Buggering up originals is a deplorable Vanity . as I see it .However cheaply it came our way .We have them in trust.
Rudyard's view on such matters
We will have to agreed to disagree re: recreating period threads, taps, and dies, or using the original fasteners when FAR better replacements exist. I'm of the firm belief that if the standardized machine tools and machining practices available in the 21st century had been available when this musket was originally made, they most definitely would have been used.
I have ZERO interest in developing the skills to build the tooling and use the resulting fasteners when superior tools and components are commercially available today. To that end I expect to [minimally] oversize drill, chamfer, and tap the existing lock holes to use coarse pitched aviation grade fasteners wherever possible (eg: AN24-26A undrilled clevis bolts will most likely replace the three fasteners that attach the lock to the stock). Similarly, I also expect to replace all of the original nails and pins.
-Bob