Was hoping to get the Golf running again as due to flooding and heavy rain I had a day off (no I wouldn't have been driving it outside!) So I started with attaching the new water pump. Unfortunately my old torque wrench had got nicked and the not so good one I bought locally either didn't click or I didn't hear it over the rain beating down on the garage roof, meaning I sheared off 1 of the 4 bolts inside the block

and damaged 2 of the others - at least got those 2 back out again though!
I was going to put a pic up of the stud in the block, but coz of the weather I can't get enough light for a decent pic. Anyway, there's just a little sticking out, but not enough to get pliers or mole grip on.
Having looked at the various techniques for removing sheared off bolts, I'm thinking I will go with welding a washer and nut to the end of the bolt and then using a socket to turn it out. Don't trust the steadiness of my hands drilling into the bolt, its more likely I'll end up in the block. A friendly neighbourhood welder has a shop just round the corner, with a sign saying he does home service, so when it finally stops raining I will ask him to pop round.
But I now need a new set of bolts - I'm thinking its probably best to by all 4 new as it could have been age rather than dodgy hearing or crap torque wrench that caused them to shear. I've tried having a look online, but can't see anywhere they are listed. I will try the independent supplier, though he's not had many of the parts I've wanted in stock yet (he keeps saying first week of September for everything I ask about

) There are no Volkswagen dealers in the Philippines - though there are a couple of Audi dealers miles away who might help as a last resort.
Here is the type of bolt - I have aircon, so need the ones that have 2 ends for the aircon compressor bracket to fit on. 2 shorter ones like in the pic, 2 slightly longer.

Does anyone know part numbers for these bolts? Or where I could find them online? Better yet does anyone have a spare set at home they wouldn't mind popping in the post? - I can send money by Paypal or a British cheque.