This carburetor air cleaner center nut is the small Chevrolet Bowtie shape and features the black Chevy Bowtie logo center with a red outline. Manufactured from high quality aluminum material and has a great looking chrome finish. Center nut works with both 1/4-20 and 5/16-18 thread studs. This is an officially licensed GM Performance Parts product. Sold individually. Backed by a limited 30 day factory warranty. Product Features:Bowtie Style Center NutFeatures Black Chevy Bowtie Center w/ Red OutlineMade from High-Quality AluminumAccommodates 1/4-20 & 5/16-18 Thread1-inch Stud Length