What cores must be used for the 8K? March 24, 2026 19:48 Updated Question What cores must be used for the 8K? Answer The 8K accepts any SFIC (Small Format Interchangeable Core). Additional Information If you would like a PDF copy of this file, please click here. For specification information or more information on the 8K, please see the catalog. 8K Lock Related to 8K Locks Related articles What door thickness range can the 8K accommodate? What finishes are offered for the 8K? Do you have 7KC levers to fit competitive core offerings?