Okay....
I'm not rich enough to afford an AMD and a P4 motherboard. I have the AMD mounting specs for socket A, I need the P4 ones.
And as for Hammer, well, if I had one of the boards for that, i'd be very happy.
Okay, asking about the screws was perhaps a little lazy, but its late here in the UK, and I'm tired, humour me
I'm also not very clued up on tapping and bolts, i've never used them before, having always soldered my blocks together in the past.
The question should really read " I know the height of the block, but how much height, in mm will the o-ring add, and how much does it need to compress to form a watertight seal "
I was simply asking for some help. If you cannot or will not provide any, because you think i'm a noob or something, then fair enough.