Schlage - B563L - Commercial Deadbolt - Classroom - Satin Chrome - Less Cylinder - Grade 2 Optical Zoom they are designed to fit

they are designed to fit most residential doors

5/16" Shackle Diameter

and “OLYMPUS” D4219 keyway in

CE Certification (Number: 0359-CPR-000509-02)

Schlage - B563L - Commercial Deadbolt - Classroom - Satin Chrome - Less Cylinder - Grade 2 Optical Zoom they are designed to fitB500 Series The B500 Series deadbolt is a revolutionary new deadbolt that delivers higher security, tougher performance and the ultimate in installation versatility. Designed by locksmiths for locksmiths, the B500 Series deadbolt can be fitted with any Schlage cylinder, fits virtually every door you service, enhances lock strength on the jamb side of the door and will change forever the way you look at deadbolts. See specifications below: Features and