Use Camco RV universal vent installation kit with putty tape to replace or install roof vents, side mount vents, plumbing stacks and refrigerator vents. The kit comes complete with screws, instructions and 1 in x 8 ft putty tape for use with aluminum or other metal roofs. The screws included are 24 #8 x 1 in slotted hex head screws and 4 #6 x 1/2 in Phillips head screws.