Keep your air cleaner firmly in position with an ARP stud kit. Includes your choice of a black oxide finished chrome moly or stainless steel stud with an appropriate nut. Vastly superior to the cheap fasteners that sometimes get used. PartNumber : arp400-0303 Description : Air Cleaner Stud Kit Material : Stainless Steel Size : 5/16 x 3.200in OAL Engine Components::Hardware - Singles