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Thread on a Polish F1 grenade

H

hansjonas

Member
Hello everybody, have a question about the Polish F1 training grenade with UZGRM fuze. Is it metric thread on the fuze? both the thread who goes in the grenade body and the thread on the delay colum.

Regards Jonas
 
Jonas

Most likely, the threads are metric as they converted to the metric system in the latter part of the 19th century.

Rick
 
Hello Rick, thanks for info. Question, are there any other threads that has been used on UZGRM fuze like UNC and UNF threads.

Jonas
 
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