GOST Gas Mask Threads

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4902291.

Same thing as my previous thread set, only in GOST 8762-75.

I don't have a mask that takes these threads, but I used the same method to create the threads as my NATO set. Please leave a comment if they worked or not for you.

Threads based off third image in https://www.thingiverse.com/thing:4319462,

These are for use in other designs, its not useful to print these by themselves. CC0 licensed, no attribution needed.

NATO version available here.