4036 Mortise Cylinder & 4066 Thumbturn

The 4036 Mortise Cylinder provides five-pin security with most Adams Rite deadlocks or deadlatches. The 4066 Thumbturn operates deadlocks or deadlatches without a key.


4036: A standard 1" [25.4 mm] length, 1-5/32" [29.4 mm] diameter cylinder with five-pin tumbler security. Designed to operate any Adams Rite deadlock or deadlatch requiring a mortise cylinder. Close tolerance manufacturing achieve set screw grooves and cam geometry that are true on their respective centerlines. This ensures proper mating and operation with the locking or latching mechanism. Select cam to suit particular Adams Rite deadlock or deadlatch.

4066: To operate deadlock or deadlatch without key. Interchanges with standard1" [25.4 mm] length, 1-5/32" [29.4 mm] diameter mortise cylinder. Cams are available to suit the particular Adams Rite deadlock or deadlatch. See next page for cam specifications.



4036: Aluminum with 313 Dark bronze anodized, 335 Black anodized, 628 Clear anodized finish. Plug is US26 (625) Bright chrome.
4066: Choice of three finishes: 130 to match 628 Clear anodized, 313 Dark bronze anodized, 335 Black anodized.

Trim Ring: Furnished. 1/4" [6.4 mm] thick, suitable for 1-3/4" [44.5 mm] thick doors. Available by special order for other door thicknesses.

Keying: All cylinders furnished with two keys per cylinder. Available in keyed different (KD), or keyed alike pairs (KA2). Keyed alike 50 are available by special order in quantity of 50 cylinders only. Please contact factory for ordering information.

Standard Package: Individually packed with trim ring. 4036 furnished with keys.

Shipping Weight: 1/2 lb [0.23kg]


Cylinders by Others: 

Adams Rite deadlocks and deadlatches are designed to accept standard 1" [25.4 mm] length, 1-5/32" [29.4 mm] diameter mortise cylinders of all popular makes. This means that the entrance can be keyed to match the system used throughout the building on other types of doors. Care must be taken, however, to specify the proper cam for each type of lock, as these are not generally interchangeable. The cam shapes shown are available from the listed cylinder manufacturers and will be supplied by them with the cylinder when specified or available separately. Because of variations in the attachment of cams to cylinders and other construction differences, it is advisable to NOT attempt using one manufacturer's cylinder with another manufacturer's cam.


Dimensions of Cam to Operate the Following Adams Rite Productsdownload document >>

Deadlocks Deadlatches Flushlocks Exit Devices Trim
1830 SeriesMS1837 SeriesMS1850S Series, MS1850SN SeriesMS1861 Series1875 SeriesMS+1890 Series, MS1950 Series2190 &  2290 Series

4300 Electrified Deadlatches

4510 Series4530 Series4900 Series4920AN Series, 4781 Two Point Deadlatch (4036 only)

1870 Series1870HM Series1877 Series Cylinder-Operated Flushbolts

8300 Mortise, 8400 Mortise

8500 CVR, 8600 CVR w/8650 Cylinder Escutcheon

3080/E Series Entry Trim

3090-150 Keyless Entry