Door Lock Functions Guide for Hardware Buyers
Learn the difference between passage, privacy, entry and dummy locks, and how distributors can choose the right lock functions for wholesale orders.
segulock
8/14/20263 min read
Passage, Privacy, Entry and Dummy Locks: A Guide for Hardware Buyers
When buying mechanical locks and door hardware in bulk, importers and distributors need to confirm more than design, finish and price. One important detail is the door lock function.
Terms such as passage, privacy, entry and dummy describe how a lockset operates and where it is normally used. Choosing the wrong function can create inventory problems or make a product unsuitable for the customer’s door.
For hardware buyers, understanding these basic lock functions makes product selection and quotation much easier.
Segulock supplies smart locks, mechanical locks and door hardware for importers, distributors and project buyers, supported by Nasentons factory.
What Is a Passage Lock?
A passage lock is designed for doors that do not require locking.
The handle or knob can normally operate freely from both sides, making passage locks suitable for areas where privacy or security is not necessary.
Common applications include:
Hallways.
Closets.
Shared interior spaces.
Utility rooms.
Interior residential doors.
For hardware stores, passage locks are useful as part of a complete interior door lock range.
What Is a Privacy Lock?
A privacy lock is commonly used for rooms where the user wants temporary privacy but does not need a traditional keyed cylinder.
Typical applications include:
Bedrooms.
Bathrooms.
Dressing rooms.
Private interior rooms.
The inside normally includes a button or thumbturn that allows the user to lock the door from inside.
Depending on the design, the exterior side may include an emergency release function.
For distributors, privacy locks are an important category because they are widely used together with passage locks in residential projects.
What Is an Entry Lock?
An entry lock is designed for doors where controlled access is required.
It normally includes a keyed cylinder on the exterior side and a locking function on the interior side.
Entry locks are commonly used for:
Main residential doors.
Apartment entrances.
Offices.
Storage areas.
Secondary exterior entrances.
For B2B buyers, entry lock specifications should include details such as cylinder type, keyway, number of keys, latch size and door thickness.
The exterior appearance may be similar to a passage or privacy lock, but the internal function is different.
What Is a Dummy Lock?
A dummy lock does not operate a latch in the same way as a normal passage or entry lock.
It is mainly used as a fixed handle or knob where only a pulling or pushing function is needed.
Typical applications include:
Closet doors.
Double doors.
Decorative doors.
Non-latching interior doors.
For hardware distributors, dummy locks are useful when customers want matching handles throughout a building but not every door requires a working latch.
Passage vs Privacy vs Entry vs Dummy
Lock FunctionLocking FunctionTypical ApplicationPassageNo lockingHallways, closets, interior roomsPrivacyLocks from insideBedrooms, bathroomsEntryKeyed accessMain doors, offices, entrancesDummyNo active latchClosets, double doors, decorative use
Understanding these differences helps distributors organize product lines more clearly and avoid ordering the wrong function.
Why Lock Function Matters for Wholesale Buyers
A distributor may order the same handle design in several different functions.
For example, one residential project may require:
Entry locks for apartment entrances.
Privacy locks for bedrooms.
Privacy locks for bathrooms.
Passage locks for common interior rooms.
Dummy handles for closets.
Using the same design and finish across different functions can create a more consistent product line.
This is especially useful for door hardware brands, building material suppliers and project buyers who want matching products throughout a house or apartment.
What Buyers Should Confirm Before Ordering
Before requesting a quotation, B2B buyers should confirm:
Required lock function.
Handle or knob design.
Door thickness.
Latch or backset size.
Cylinder type for entry models.
Keyway and number of keys.
Material.
Surface finish.
Left/right handing if required.
Quantity for each function.
Individual packaging.
OEM logo or packaging requirements.
When multiple functions use the same design, buyers should clearly separate quantities for entry, privacy, passage and dummy versions.
FAQ About Door Lock Functions
What is the difference between passage and privacy locks?
Passage locks normally do not lock, while privacy locks can be locked from inside and are commonly used for bedrooms and bathrooms.
What is an entry lock used for?
Entry locks are used for doors where keyed access is required, such as residential entrances, offices or storage areas.
Does a dummy lock have a latch?
A dummy handle is mainly decorative or used for pulling and typically does not operate like a standard latching lockset.
Can the same lock design have different functions?
Yes. Many handle and knob designs can be produced in different functions, depending on the product series and configuration.
What should importers send when requesting a quote?
Buyers can provide product style, required function, quantity, finish, latch specification, cylinder requirement, packaging and destination market.
Build a More Complete Mechanical Lock Range
For hardware importers and distributors, understanding lock functions helps create a better-organized product range. Passage, privacy, entry and dummy locks serve different doors but can often share the same design and finish.
If you are sourcing mechanical handle locks, knob locks, entrance locks or related door hardware, send Segulock your required functions, quantities and specifications. Our team can review suitable models and prepare a wholesale quotation for your market.
