Thanks, I did begin to drill it out but stopped as I didn't want to damage the internal thread. I do have some of these: https://www.screwfix.com/p/bolt-ext...QDx6yhT96xyt9y8mLZBoCADIQAvD_BwE&gclsrc=aw.dsDrill it with a HSS bit and use a screw extractor
What is that "red" stuff in the hole?
Is that a small [almost] circular "hole" in the base of the old screw?
didn't know such things existed - thank youif you drill it, use a left-handed drill, at low speed. The torque, heat and vibration will often loosen and wind out a damaged screw. Start with a small one, centred, and gradually increase.
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local