Depending on the application, there are two types of blocking rings offered for mortise cylinders- One for use with a compression ring, and one for use without. When a compression ring is u...
After selecting the correct blocking ring, specify the thickness. The table below shows the different thicknesses that the rings are offered in.
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The 20-001 is a conventional mortise cylinder with a straight cam, compression ring and spring for use on rose trim. For use with the L9060 outside cylinder or other straight cam applications.
The 30-001 is a conventional mortise cylinder with a clover cam, compression ring and spring for use on rose trim.
For use with the L9000 mortise locks except for the L9060 outside cylinder.