bed cover locks
Find the brand name, and model number, call company and have them make you a set or give you the key type and code then bring those numbers to an hardware store. I did this with a bed style tool box on my old truck when I lost the keys.
If there is a number on the lock, like 4 digits, you should be able to get them from a lock smith or somewhere cheap. Or just call the manufacturer and they can order keys from whoever manufactures there locks. Or better yet, ask them who manufactures there locks and call them direct, but thats only if you have the digits from the lock.

