To ensure your pet's safety, regularly check all kennel parts for replacement. 7/8" Replacement Bolts is designed specifically for use with the following kennels: Kennel Cab, Pet Taxi, Deluxe Pet Porter, Vari Kennel, Sky Kennel (older version discontinued in 2006) and the 2 Door Top Load Kennels. To ensure a proper fit, be sure to match your pet's kennel name with the above list. Each package contains 12 screws and wing nuts.