Question about oil cooler fittings for a 650

Does anyone have metric fittings similiar to the brass NPT?

I will be installing an oil cooler on my 650 soon, and Klasmo has some pricey metric fittings and banjo bolts that use a hose clamp to hold on the hose. Oldkawman has a few pages about using NPT fittings, and then you can have a threaded hose fitting which I like better than a hose clamp, but that means re-threading holes.

I want to avoid re-threading anything, and just screw on a fitting using Metric fittings, but I can't seem to find any on the net, any suggestions?

Kent...don't forget about the archives,Bud.
I just did a search,and there is a lot on info stored there...check it out.
I entered,"650 oil cooler" and came up with a lot of hits and info...do some reading,Bud,and I'm sure You'll get some good info.