Buying Schlage locks with the same key doesn't require a special "multi-pack" (though those exist). It simply requires checking the on the boxes or spending a few extra minutes at the hardware service counter. It’s a small effort that saves you years of fumbling at your doorstep.
Find multiple boxes that have the exact same Key Code sticker.
If you can’t find matching codes on the shelf—or if you need a specific style that only has one unit in stock—most hardware stores offer a rekeying service.
A locksmith or a trained hardware store employee can rekey the new locks to match your current house key before you even leave the store.
It usually costs between $5 and $15 per cylinder. They will physically rearrange the pins inside the lock to match one specific key. 3. Matching an Existing Key