If you are looking for a cheap screw packet or a .50 cent screwdriver you won't find it there They aren't a package hardware store. Sewell Hardware has A LOT of stuff for the professional who needs professional grade equipment, and what the don't have on hand they can get their hands on very quickly!
Also, if you need to replace a lock, this is your place! These guys have years of experience with all types of locks, handles, hinges and the like. I haven't gone there yet when I have a problem that they haven't been able to help me get then answer or get what I need.