Hi David, you're not using FedEx by any chance
If my memory serves me correctly I believe that there is a difference in the bolts but possibly just the thread. As Phil says, if the crates original it'll have the bracket.
Read the destructions on the inside of the door if they're still on it and as she has a special spine and be very careful how you pick her up just in case she 'flops over' away from you.