These rubber grommets can be used on any case fans. They absorb the vibrations from the fan and reduce the overall noise level. You will need 4 of them per fan, one for each screw.

Shape:	Round Hole
For Screw Size:	10
Material Type:	Rubber
Finish:	Plain
Rubber Material:	EPDM Rubber
Color:	Black
Inside Diameter:	.17"
Outside Diameter:	.375" (3/8")
Minimum Thickness:	.093"
Thickness Tolerance:	±.020"
Application:	Sealing Washer, Cushioning Washer
Durometer Hardness:	55A-65A
Operating Temperature Range:	-20° to +212° F
Specifications Met:	Not Rated

04-22-2011
Reviewer: Sean C (5)
I bought 4 of these to put between my PSU screws and the case (along with one of the rubber silencers that goes between the PSU and case). They entirely removed the vibrational noise that I used to get from my power supply. They''re cheap and they work great, not much else to say.