3 pack was not keyed alike. The main difference between TCDHINGES matte black interior door locks and other home door locks is that each of our door knob locks has a different lock cylinder. Each lock cylinder have same 3 key. Bedroom door knobs interior with lock and key are designed for quick, tool-free setup, allowing you to enhance your home or office security in just minutes—no specialized skills needed! No professional tools needed – just a screwdriver! Traditional mechanical bedroom door lock with key can be installed with basic household tools, so you won’t need extra trips to the hardware store.Matte black knob locks for doors ( conventional/routine/common/ordinary/plain door or heavy duty shed. Exterior black door knobs with lock fits left-handed and right-handed doors. Keyed entry door knobs has crafted from premium stainless steel with black finish, lock resists rust and wear for long-lasting performance. With ANSI Grade 3 certification, it combines durability with modern elegance. Our smooth round door knobs are designed to compliment a wide range of residential and commercial interior doors, decor style perfect for contemporary, modern and antique, vintage. Each lock with three same keys. You can buy black door hinges with door knobs to decorate your doors. Versatile compatibility designed black lock with key to fit bedroom, screen, bifold doors, bathroom vanity, closet doors, cabinets, french door, room doors, business entry door, apartment, dorm, school, company, rent, factory, gym, hospital, hotel, frame house, shop, police office, loft, black inside door knobs includes an adjustable latch that supports 2-3/8" (60mm) or 2-3/4" (70mm) backsets. It works with door thicknesses ranging from 1-3/8" (35mm) to 2" (50mm), making it compatible with nearly all standard doors. Exterior Keyed Knob (First Layer of Security)The external side of the door knob requires a physical key to unlock, preventing unauthorized entry from outside.Ideal for exterior doors (e.g., front doors, back doors, garage entries) where key control is essential.Interior Thumb-Turn Lock (Second Layer of Security & Convenience)The internal side features a thumb-turn mechanism, allowing quick and easy locking/unlocking without a key.Ensures privacy in bedrooms, bathrooms, or home offices. Matte black door knob with lock is designed to provide dual-level security, combining a keyed exterior knob with a thumb-turn interior mechanism to deliver reliable access control for both interior and exterior doors. Whether you need to secure your home, office, or any private space. locker door locks have sturdy steel construction.entry door locks with key with matching screws for installation.locking with key for tool box. extrior door knob for mobile home garage door front door metal door thick doors barn doors french doors 2 1/4 1 inch thick doors camper cars crafts.black interior bi-fold door knobs lock and key for front door a closets bedroom hallway modular homes rv older doors armoire arthritic hands accordition closet doors closet doors cupboards double doors master secondary bedroom door children's room door guest room door home office door study power laundry room door studio door storage closet door utility closet door,attic access door wine cellar door,safe room shelter door shed door pet isolation room door home gym door bar door walk-in closet door villa mansion bungalow maisonette rooming house farm ranch vacation home cottage skylight roof window fixed window single family home detached home townhouse duplex triplex Co-op penthouse diy frame door hardware brushed nickel door hardware interior parts kit patio doors screen doors stop barn door shower door exclusive door folding doors hollow core doors slab doors The elegant round handle lock have different material:crystal wood,egg shaped. when you move in your new house for smart home improvement,you will need keyed door knob with deadbolt,kitchen faucets,matte black door hinges,door stoppers,door lock,locker lock,over the door hooks,towel holder,doorbell,door hooks,smart lock,front door lock set,fingerprint door lock,window locks,door seal.