Hi All I need to extend my muffler on my Irvine 40..Here 's the problem I need to cut the extension piece about 3/4.. I can cut and drill this out . Question is where do I get Metric Screw's that are 3mm and longer then 50mm.

I do have the a Dubro short extension piece, but need it just a little longer.THat came with 3mmx50mm screw's.. I'm going to need just a little more in the length.. So far I haven't come across then?

Thanks Dan