Proform 141-328 - Officially Licensed GM Air Cleaner Wing Nuts

Available for GM, Chevrolet, these die-cast air cleaner center nuts are offered in two styles, in both large and small sizes. The large size is recommended for 14'' and 10'' air cleaner kits, the small for 6-3/4'' and 4-7/16'' air cleaner kits. There is a choice of both the Bowtie shape and the hi-tech spinner style. They fit both 1/4''-20 and 5/16''-18 studs.