This fits straight into an SM58 and I've been able to re use 2 old mics that would otherwise have needed donor mics for new pins as nobody seems to sell these anywhere, including Shure UK! They said that due to the amount of fakes around they do not sell this part, which sounds ridiculous when the rest of the mic is bombproof and designed to last for a lifetime. In fact one of the 58's I fixed had the old style wiring meaning it was made before 1981 and it sounds just as good as a brand new one. So why would Shure not sell the replacement for one of the only parts that may wear out or get broke. Anyway, no matter now, Thomann to to the rescue. I searched all over the UK and can guarantee nowhere else sells these. They are very easy to fit, you just need to solder 2 wires on the rear of the pins, which is a little fiddly but the solder seems to flow well into the recess. Then just push in, the slot and groove let you only put it in one way, just push it far enough for the hole to line up with the hole in the mic, then tighten the grub screw.
