Before heading to the hardware store or kiosk, learn how to identify your Schlage key type with confidence. Not all keys are created equal—mixing up a SC1 and SC4 could result in a useless duplicate. This guide walks you through visual inspection, keyway decoding, and the legality of duplicating restricted keys. https://www.gratisnyheder.dk/2025/06/schlage-key-copy-identification-guide/