Description
Schlage B660J 643E Single Cylinder Deadbolt
This Schlage B660J 643E is a single cylinder deadbolt, finished in Aged Bronze (643E). Configuration: Grade 1, 2-3/4 Backset, FSIC Prep, Less Core.
About this deadbolt
A deadbolt adds a bolt that can't be pushed back without a key or thumbturn, adding security to the main latch. A single cylinder deadbolt has a key outside and a thumbturn inside; a double cylinder has a key on both sides, which some codes restrict on egress doors.
Specifications
| Brand | Schlage |
|---|---|
| Model / SKU | B660J 643E |
| Product type | Single Cylinder Deadbolt |
| ANSI/BHMA grade | Grade 1 |
| Finish | Aged Bronze – BHMA 643E |
| Configuration | Grade 1, 2-3/4 Backset, FSIC Prep, Less Core |
Questions and answers
Single or double cylinder?
Single cylinder allows quick exit with the thumbturn. Double cylinder needs a key on both sides, so check local code before using it on an exit door.
Questions about fit, finish or keying? Call Security Lock Supply at (877) 202-8118.
