I found a key that says "Defiant" on the front, and "34525" on the back. Do you have any idea of its origin, or what the key is used for?


"Defiant" is an inexpensive brand of lock sold at Home Depot. The number "34525" sounds like a five-pin bitting.

Updated on April 10, 2018

Original Article:

What Do the Numbers on My Key Mean?
By Tom Rubenoff