On-Stage MA-100 3/8" Male to 5/8" Female Mic Screw Adapter MA100 features 3/8" male to 5/8" female for use with mic stands with European 3/8" threads. MA100 features 3/8" male to 5/8" female for use with mic stands with European 3/8" threads. MA100 features 3/8" male to 5/8" female for use with mic stands with European 3/8" threads.