This ANSI Grade 1 Single Cylinder Deadbolt is made for high level use. A one sided deadbolt, it has no trim on the inside (Can NOT be unlocked from the inside). For doors with a 2-3/4 inch backset from 1-5/8 inches up to 2 inches thick. Requires 1-1/2 inch cross bore. A heavy-duty deadbolt, it is UL listed for a 3-hour fire door with a metal dust box reinforcer with three 3" screws. Available in 6 finishes.

Cylinder Lock Deadbolt thrown or retracted by key from one side. It does not have inside trim. Bolt automatically deadlocks when fully thrown. Requires 1-1/2"cross bore hole.

Features of the Schlage Commercial B664P One Sided Keyed Deadbolt:

• Metal dust box reinforcer with three 3" screws.
• Schlage 6-pin C keyway.
• Packaged with 2 keys.
• NASI A156.5, 2001, Grade 1.
• UL listed for 3-hour fire door

Specifications of the Schlage One Sided Keyed Deadbolt:

• Cross Bore: 1-1/2" Required.
• Backset: 2-3/4"
• Door Thickness Range: 1-5/8" - 2"
• Strike: 1-1/8" x 2-3/4", square corner, box
• Deadbolt: 1-1/8" - 2-1/4", square corner faceplate, 1" housing diameter, 1" throw

Select Finish  626: Satin Chrome 605: Bright Brass Add  $2.10 606: Satin Brass Add  $2.10 619: Satin Nickel Add  $2.10 643e: Aged Bronze Add  $2.10 613: Oil Rubbed Bronze Add  $5.60   Keying - Important Ordering Guide I Only Ordered One. Keyed Different Keyed Alike Add  $5.50
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