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STEP M12 Mechanical lock case

STEP M12 Mechanical lock case

Premium mechanical latch lock, well suited for use with STEP Electric strikes

STEP M12 is a mechanical lock case with only a lever handle latch bolt. The lock is developed with unmatched quality built to last over time.

  • The lock is reversible to fit both right and left hung doors.
  • Lock case face plate in stainless steel.
  • Latch bolt in hardened steel with a surface treatment of chemical nickel plating.
  • Perfectly suited for use in combination with electric strikes.

Replacement guide

STEP M12 corresponds to ASSA 212.

For door environments with fire requirements

Certified for fire resistance in Grade 1 (E/EI120) acc. to EN 12209.

With or without microswitches

Choose between a version with microswitches (M12M) or without (M12), 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 M12 Mechanical lock case

Mechanical lock case with lever handle latch lock

STEP M12 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.

Functional description


Opening the door in-/outside.

Key retracts the latch bolt.

Opening the door in-/outside.

Lever handle retracts the latch bolt.
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ID STEP M12

Mechanical lock case with only a lever handle latch lock. Swedish premium quality.

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