This place is usually pretty good mate, they don't have that size your specifing though only M10x 1.0mm or M10 x 1.25mm

I would assume for the prop you would need Grade 10,9 rather than 8,8 but they may have the size ??.

Not many places seem to be able to supply 10,9 either....

http://www.namrick.co.uk/browse.asp?PCID=9