Machined aluminum hold down nut features an o-ring sealed base to help prevent water and dirt from entering the top of most air cleaner lids and a knurled surface for easy removal and installation without tools. The o-ring in the base creates a positive seal.
Details:
Thread: 5/16 Inch-18
Finish: Anodized
Size: 5/16 Inch-18 Thread x 5/8 Inch Tall Short Nut