Quote Originally Posted by Dornfelderliebe View Post
I've re read it. I tried the aussie seals adapter, two questions, does the spigot need to be turned down before threading and can a die cut all the way down to the piston body?
obviously the OD needs to match the thread the die is trying to cut. From memory it's around 8mm, so if you choose m8 (or whatever matches) you are good. Then thread on your alli head.

The aussie uses a bolt IIRC... if you change that for a female countersunk version (aka a nut), you are fine again. Just thread the nut onto a threaded bolt, backup up against another nut so it's tight. Then turn it against a grindstone to get the conical shape. Cut a slot in the face for a large screwdriver bit.