Rockwell Security 360 Degree European Profile Cylinder Lock Solid Brass Antique Black Finish for Commercial and Residential Doors Fits 2-3/8 Inch Thick Door

45/45 90mm Active Keyed 360° Euro Cylinder
Schlage SC1

Measurements: 
Inside Distance: 45mm ( 1-3/4" )
Outside Distance : 45mm ( 1-3/4" )
Overall (inside + outside)  90mm  ( 3-1/2" )

Overall Length: 3-1/2 inches ( 90mm)
Center of Screw: 1-3/4 (45mm) 

Color Options:
Black
Satin Nickel
Oil Rubbed Bronze
White