This is a Grade 2 auxiliary deadbolt from Stanley Security. It is a single cylinder deadbolt built for a small format interchangeable core (SFIC). It adds a separate deadbolting point to a door that already has a primary latching lock. Part QDB281 625 NR8 FLR LC is the Single Cyl SFIC Less Cylinder, Narrow Radius 2-3/8, Full Lip Radius Strike version in Bright Chrome.

• Single Cyl SFIC Less Cylinder
• Narrow Radius 2-3/8
• Full Lip Radius Strike
• Finish 625 Bright Chrome
• Part number QDB281 625 NR8 FLR LC