Microphone stand adapters 3/8 to 5/8 and 3/8 to M16x1 (USSR)

Two adapters to mount microphones to standard microphone stand (3/8" 16 TPI):

• 5/8" 27 TPI for most microphones
• M16x1 for vintage USSR microphones

These threads are really similar but slightly different: first one has pitch 0.94 mm, second - exactly 1 mm, this is why I've modeled them. When we mount M16x1 mic on standard modern 5/8" adapter, it screws just on few turns and one of threads can be damaged if too much force applied.