|That is an example of the 'clippy' thing that holds older cpu heatsinks in place. AMD K8's and Intel P-4's and above usually use a lever tiedown kind of arrangement to hold things together.|
Of the older type, the clips have to be matched to the geometry of the heatsink so using one from another heatsink may not work. But the 'clippy' heatsink assemblies should be cheap and easy to find. Most will fit socket 7, socket 370 and socket 462. I've got a box full of those.
Otherwise if you've got the newer type you'll need to describe it. Some makers like Dell have their own proprietary setup but I've seen parts for them on ebay.
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