I just got the plycon one and it's very high quality. It doesn't come with parts, however getting some 8x32x1.25 screws hold the fan onto it nicely. Getting it to fit on the pal 6035 heatsink was a bit of a pain, I had to get some nuts that would fit the screws for the heatsink and space them out so it would fit snugly. It got me an extra 60mhz out of my Duron so definitely worth the cash.