This is a Grade 2 auxiliary deadbolt for adding a deadbolt to a commercial door, such as a classroom door. It takes an SFIC (small format interchangeable core) cylinder. Some versions come with a Best F core and some without a cylinder. Latch faces, backsets and strikes vary by SKU. Part QDB287 605 R4 FLR LC is the Classroom SFIC Less Cylinder, Radius 2-3/4, Full Lip Radius Strike version in Bright Brass.

• Classroom SFIC Less Cylinder
• Radius 2-3/4
• Full Lip Radius Strike
• Finish 605 Bright Brass
• Part number QDB287 605 R4 FLR LC