There is some rust where the center one was so I'm including a stainless washer which covers it and will hold it very well. You may choose to have a section cut out and tacked in but I offered this as an easy fix and won't be seen. The factory tapped the rivets in and attached the bottom to the top with screws.
The factory screws are included. Some people may not know it but then the factory had 2 more rivets which held the crossover to the intake.
This was only on the 1972 HO intake and not the 1969-71. There are 2 pictured but 4 are included. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Air & Fuel Delivery\Hoses, Lines & Pipes".The seller is "ravjudge" and is located in this country: US. This item can be shipped to United States.