Yes, the B62 (keyed on both sides) can be converted into a B60 (keyed on one side). However, the parts typically cost as much as new single sided deadbolt (B60). Here are the parts required for conversion:
Mounting Screws: B600-310 (Finish) x 2
Thumbturn: B300-043 (Finish)
Cylinder: 23-106 (Finish)
Steps:
1. Remove existing outside cylinder and replace with new cylinder (23-106).
2. Replace inside cylinder housing with new thumbturn (B300-043) and mounting screws (B600-310).
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