These are 6 brand new bolts that hold the door latch striker plates on a 1955 - 1959 Cadillac's. These are the same for 1955 to 1959 Cadillac for sure, I have compared them to the cars I have, but I believe they would be the same for all mid 50's GM cars and possibly more, but please verify for yourself before bidding that these are correct for your application. They are 5/16" Bolts. These exact reproductions, they have the correct thread, the correct size and the correct oval phillips head with the lock washer on them. Sold As Is, As Shown.