To distinguish whether a stainless steel core core locks is true or false, you can judge it from three core dimensions:
I. Structural Principle: Locking core and locking body position relation.
The Real Punch
Definition: The core is inserted directly into the body of the lock, forming an integral structure with the body. The term is called plug-in.
Internal structure: The lock core runs through the lock body. The key drives the lock core to rotate, thus driving the lock body to unlock.
Anti-theft principle: Even if the outer plate is pried open, the lock core still passes through the lock body. It is necessary to damage the lock core when unlocking, so the anti-riot unlocking ability is strong.
Counterfeit plugins (external type)
Definition: The lock core is located on the outside of the lock body and is connected to the lock body by a paddle plate or square steel. The term is called "external installation type."
Internal structure: The lock core is located at the bottom of the door lock. When the key rotates the lock core, the lock is unlocked through the blades.
Anti-plucking principle: if the outer board is pried open to reveal the oar or square steel, the lock can be screwed straight off with a screwdriver, the anti-plucking ability is relatively weak.
II. Appearance Features: Keyhole position and panel design
True plug-in core
Location of keyhole: There is a distinct mechanical keyhole in the center of the front of the outer plate, usually covered with a square or circular lid.
Panel Design: When the core is inserted into the body of the lock, the panel needs to reserve the location of the core hole. The overall design can be a bit complicated.
False plugs
Keyhole position: There is no mechanical keyhole on the front of the outer plate, only the fingerprint recognition or password input area is retained. Spare keyhole is usually hidden at the bottom or side of the panel.
Panel design: the appearance is more simple atmosphere, meet the aesthetic demands of modern people, especially suitable for the pursuit of a minimalist style of scene.
III. Applicability versus safety
True plug-in core
Applicable scenarios: Places with high security requirements, such as security gates, warehouses, financial institutions, etc.
Safety advantage: has the strong anti-riot opening capability, is especially suitable to resist lock picking, lock drill and so on attack.
Limitations: The length of the lock core is fixed. If the door is not thick enough, the lock core may protrude and be exposed, susceptible to weathering.
False plugs
Applicable scenarios: common household, shop, office building, etc.
Security advantages
Anti-prying alarm function: Most anti-theft pin smart locks are equipped with anti-theft alarm system. When the outer panel is pried open, it automatically alerts and sends a notification.
Technical unlocking difficulty: The down-hole design increases the technical unlocking difficulty (squat is required to operate), and the C-core configuration is effective against technical unlocking.
Flexibility advantage: Door plate or square steel can be trimmed according to the thickness of the door to suit different types of door, design is more flexible.





