Give your center nut style air cleaner an exciting new look with a prominent Extra-Large Bowtie Center Nut. The 3D contoured design with sleek slanted edges, Black Crinkle finish and black Bowtie center, gives this center nut a bold look that really sets off the top of your air cleaner for the perfect final touch. Made from quality aluminum, this a quick and easy upgrade will fit both 1/4-20 and 5/16-18 studs.