I've read of people having trouble finding two bolts with the correct thread to screw into the face of the brake drums to extract them, without having to resort to use of the big hammer.

My fave pair were the remains of the silencer/exhaust system bolts that I had to grind off to remove the original daihatsu zorst pipe.

However, I've just got a 'Suspension Anti-Roll Kit Rear' (part number 004608K, HA000) from Milners. Guess what, the bolts are just the right thread to do the job as well.