I've done a trial of the bolt head to bolt head welding but have no idea what, if any, metallurgical effects it may have had. The basic welding of one to the other wasn't hard - create the tapered groove, weld them and dress the weld down. This was only done to satisfy my curiosity as a trial to see if it was possible to make something of the right size and shape, not actually used to hold the head and filter in place.
|