Polished brass finished protecto featured single cylinder deadbolt.  It is typically used on a front or back exterior door and is operated with a key from the exterior of the home and a thumbturn from the interior. 

• Use of the home owner key will permanently lock out the contractor key
• Ideal for contractor's access to the house during construction period
• Kwikset keyway
• 5 Pin cylinder
• 1" Throw bolt with 1" diameter
• Adjustable backset 2-3/8" or 2 ?" as standard
• Fits door thickness of 1-3/8" to 1-3/4" as standard
• Strike plate and installation screws included
• 1 Yellow envelope with 2 custom coded home keys included per lock
• 1 Custom coded contractor key per order or per case of 30 locks