I've been burnt by stripped threads on a couple of occasions now, so knowing that metal putty could be used to re-tap a brand new thread in aluminum would be reassuring.
I recently came across Liqui Moly Metal Putty. The data sheet says:
Liqui Moly Metal Putty is a firmly adherent, 2-component epoxy resin putty with very high chemical resistance. Liqui Moly Metal Putty is ideally suitable for permanent, quick repairs such as sealing cracks or repairing damaged threaded holes in iron, cast iron and other surfaces. Also suitable for magnesium. After curing, the repaired site can be further processed by milling or grinding etc. and painted over.
The lack of mention of aluminum here is a bit little strange. I don't expect there to be any issues in using the product with aluminum, but as I haven't tried it I cannot be sure.
Am I being overly cautious, or is there a reason to be concerned here?