Question:
What is the difference between 161 Prep and 86 Edge?
Answer:
These are terms used to indicate the lock prep on the door.
161 Prep is a cylindrical lock prep with a 2-1/8" hole at 2-3/4" backset, where the door edge prep is 1-1/8" x 2-1/4". Optional thru holes are available upon request, but the manufacturer and model number needs to be specified.
86 Edge is a mortise lock prep where the door edge prep is 1-1/4" x 8". Optional face prep is available upon request, but the manufacturer and model number needs to be specified.
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