Spectre Performance 4208 Low Profile Air Cleaner Nut<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Fits 1/4 inch 20 threaded studs</li><li>Use on air cleaners and plenums</li><li>Allows for super low hood clearance</li><li>Fits many after market air cleaners</li><li>Unique flush design adds no extra height</li></ul></div><img src="http://ecx.images-amazon.com/images/I/311Qy5ppGbL.jpg" noproxy>