Leaderboard

Got it fixed, doesnt match the other one very well, it does screw in, which is fairly amazing that i drilled the tiny old one out without buggering the threads, but it will do for now, i will keep looking for the correct screw.

Brass and aluminium have a bad habit of corroding badly when they are together with water. The zinc in the brass is the trouble. Silicon bronze is better, or insulating the two materials with something like the thread tape the yamaha mech suggested might work if the tightening doesn't cut through the tape. Those water pipe fittings are also availiable in steel though which will possibly out last anything that sets up an electrolysis reaction as the brass does.