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The CES Key Cylinder 815 is a high-quality European locking mechanism with a keyed access point on one end and a thumb turn on the other. Available in four thumb turn styles and multiple finishes to coordinate with your entry hardware.
Cylinder Sizes Offered:
Understanding A, B & C Dimensions:
A = interior cylinder length
B = exterior cylinder length
C = distance through the door thickness to determine correct cylinder sizing
Measurement Note: The dimensions listed assume the interior (A) and exterior (B) lengths are equal. Project conditions vary depending on door thickness and hardware placement, and final pricing depends on accurate measurements. Contact us for a custom quote if your A/B/C dimensions differ.
Measurement Requirements for Pricing:
Provide dimensions A, B, and C or review the Order Guide for measuring instructions.

360° rotation required to lock or unlock the mechanism.
When ordering more than one cylinder, choose preferred keying configuration:
Thumb turn available in 11 finishes:
The CES Key Cylinder 815 is a high-quality European locking mechanism with a keyed access point on one end and a thumb turn on the other. Available in four thumb turn styles and multiple finishes to coordinate with your entry hardware.
Cylinder Sizes Offered:
Understanding A, B & C Dimensions:
A = interior cylinder length
B = exterior cylinder length
C = distance through the door thickness to determine correct cylinder sizing
Measurement Note: The dimensions listed assume the interior (A) and exterior (B) lengths are equal. Project conditions vary depending on door thickness and hardware placement, and final pricing depends on accurate measurements. Contact us for a custom quote if your A/B/C dimensions differ.
Measurement Requirements for Pricing:
Provide dimensions A, B, and C or review the Order Guide for measuring instructions.

360° rotation required to lock or unlock the mechanism.
When ordering more than one cylinder, choose preferred keying configuration:
Thumb turn available in 11 finishes: