Steelcase FR AP Empty Lock Core Housing. Install your own wafers and springs and key the plug to any lock code you choose. Great for high security applications where you do not want a lock code stamped on the face of the lock.

NOTE: The FR lock core housings use key blanks AP1, AP2, AP3 & AP4. The Steelcase FR series rotates the key blanks used through the whole series so lock code FR301 uses AP1, FR302 uses AP2, FR303 uses AP3 and FR304 uses AP4 and then repeats the same order throughout the series.

If you want to quickly check the key blank used on a specific lock code, please go to the lock code list for the FR301 - FR800 series or the FR801 - FR999 series and click on the lock code desired. The resulting lock code page will list the key blank used.