Here is the link to the FASTEC factory sales page. You can buy keys, lock cylinders and/or replacement locksets. A REMINDER: If you buy replacement cylinders or locksets, remember that there are two cylinders in locksets with a dead bolt and there are locksets available on the page with and without deadbolts, so be sure you order what you really need and pay attention to what you have so you can replace it with a similar item !!!!!
http://www.fastecindustrial.com/products/default.html