Whitworth Thread on a M24/47

[tighten tournique]

At the time of the manufacture of these weapons I believe that the only standardized threads were Whitworth and were adopted all over Europe. Mausers were of German manufacture from 1890ish through the end of WWII and were the standard issue weapon of the Nazis. "Yugos" were manufactured from captured German tooling post WWII by USSR who produced millions of these both for export to other countries but kept in storage as the SKS and later the AK became the front line Eastern Bloc weapons.

Thats how I understand it....