Does I need a clasp for this water block?

Hi
first, I'm new here and also new at water cooling.
my friend explain to me the principle of water cooling, and I want to order the products.
I'm ordering it from Danger Den, and I choose this water block .

My question is do I have to buy a separate clasp for it?
(I think this is the clasp , but it doesn't looks fitting to the ABIT AI7!)

The AI7 is a Intel board and the supplied hardware should be fine. That hold down bracket is for AMD motherboards that dont have the mounting holes.

Here is a shot of my RBX mounted on a IC7 max3 which will mount the same on your AI7 other than being at an angle.

http://webpages.charter.net/chew_toy/1/WB5.jpg