
Premium mechanical latch lock, well suited for use with STEP Electric strikes
STEP SM22 is a mechanical lock case with double latch locks and split function. The lock is developed with unmatched quality built to last over time.
- Modern bolt placement with the cylinder latch bolt located in the center of the lock case.
- The lock is reversible to fit both right and left hung doors.
- Lock case face plate in stainless steel.
- Latch bolts in hardened steel with a surface treatment of chemical nickel plating.
- Perfectly suited for use in combination with electric strikes.
Replacement guide
STEP SM22 corresponds to ASSA 622.
For door environments with fire requirements
Certified for fire resistance in Grade 1 (E/EI120) acc. to EN 12209.
With quality-assured split function
STEP SM22 is equipped with split function that really lasts over time.
The split function means that the interior lever handle and exterior lever handle can work independently of each other. This allows you to have a controlled access control from the outside, while at the same time you can open the door by only using the lever handle from the interior side.
With or without microswitches
Choose between a version with microswitches (SM22M) or without (SM22), depending on your needs.
For door environments with high operational reliability
Ideal for daytime locking and internal locking in offices, schools, hospitals, industrial facilities, and other shared spaces.
Swedish premium quality
All our products are developed and manufactured by us in Sweden. Maximum functionality and operational reliability are features we never compromise on. By choosing STEP, you not only support Swedish technology and industry – you also choose premium-quality products that ensure long-term reliability.
STEP SM22 Mechanical lock case
Mechanical lock case with double latch locks and split function
STEP SM22 is a mechanical lock case you can truly rely on. With the same high standards for quality, feel and finish, it is now possible to give the entire door environment a consistent level of quality, as the mechanical lock in the door can maintain exactly the same high level as the electric strike plate in the frame.Opening the door in-/outside.
Key retracts all latch bolts.Switchable split function lever handle.
Opening the door from the inside.
Lever handle on the inside of the door retracts all latch bolts.Opening the door from the outside.
Lever handle on the outside of the door retracts lower latch bolt.Mechanical lock case with double latch lock. With plit function. Swedish premium quality.



Certificates
- Certified for fire resistance in Grade 1 (E/EI120) according to EN 12209.
Technical information
- Modern bolt placement.
- Backset 50 mm.
- Split-spindle function.
- STEP Square spindle is included in the package, ST1088-50 and ST1088-57.
- The latch bolts are made of hardened steel with a surface treatment of chemical nickel plating.
- Reversible to fit both right and left hung doors.
- For round and oval Scandinavian cylinders.
- Lock case face plate in stainless steel.
- Available with or without micro switch.
- Very well suited for use together with STEP Electric strikes.
- Unsurpassed quality.
- Developed and produced in Västerås, Sweden.
- Patent pending.
















