Best Door Knob Locks

In this article, we’ve put together a collection of the best door knob locks that are currently trending on the market. We used AI and big data to analyze dozens of reviews and ratings on different door knob locks. Based on certain criteria, here we are presenting the top 10 door knob locks that you can consider buying for your needs. To make your choice easier, we constantly update this collection of door knob locks with new and trading models. When you make any purchase through our link, we may earn some commissions.

10 Best Door Knob Locks

Based on overall quality, performance, features, price, and customer reviews, the followings are the top 10 best selling door knob locks:

1
Product Highlights:
  • DOORKNOB LOCK-OUT DEVICE – The Defender Security doorknob lock-out device can be placed directly over the doorknob to prevent access to the keyhole.
  • COVERS KEYHOLE – This doorknob security device is not designed to prevent turning an unlocked knob, but rather to block access to the locked keyhole, effectively keeping other keyholders out.
  • REMOVABLE – The durable diecast cylinder is held in place with an O-ring and is removable when the device is unlocked and open. The cylinder cannot be removed when the device is closed and locked.
  • DIMENSIONS – This lock-out device can protect round doorknobs that have a max diameter of 2-7/8”. Note that the shaft cut-out is oval/oblong in shape and measures 1-3/4 in. x 1-1/2 in., so it may fit loosely over some doorknobs with round, slender shafts.
  • APPLICATIONS – This lock-out device is often used in evictions, rentals, home sales, on job sites, in-home, in-office storage knobs and more. It can be used in any situation where you want to prevent others with keys from unlocking the doorknob.
2
Product Highlights:
  • ★Special Design---Special double button design with soft TPR material increased friction with the door knob. When you need to open the door,press the double buttons and turn the door knob easily.
  • ★Easy Installation/Release---No drill and tools need,no harm to the door.Take off the door knob cover then set it on the door knob and close the two covers,the door knob is in lock.It can be easily released by a screwdriver.
  • ★Why need it---Prevent babies from opening the door and getting into dangers like the toilet or the storeroom and get injured;Prevent babies from going in or out of the house without adults' superision; Prevent children from playing with the door and pinching their fingers.
  • ★Safety & Eco-Friendly---Made of Eco-Friendly PP and TPR material. EUDEMON baby safty door knob cover has pass Mechanical and Physical Properties test(EN71). Parents can use them safely on the door knobs.
  • Please note that this product has been updated, with only a little difference in appearance, but no change in function. You may receive products both in old version and the new version, but the function is completely the same, please feel free to purchase.
Sale3
Product Highlights:
  • PREVENT ACCESS TO KEYHOLE – This door knob lock-out device prevents turning of knob and access to keyhole, ensuring others with a key are not able to unlock the door. For use with keyholes in round door knobs of up to 2-7/16 in. outside diameter.
  • FOR RENTALS, EVICTIONS AND MORE – This lockout device is often used in evictions, rentals, home sales, job sites and in-home or office storage.
  • QUICK, EASY INSTALLATION – Installation is quick and easy – just place door knob lock-out device over the door knob, lock and go!
  • DURABLE CONSTRUCTION – With diecast construction and a painted finish, this lock-out device is built to last. Cylinder is held in place with an O-ring and is removable when device is open and unlocked. The cylinder cannot be removed when device is closed and locked.
  • PREVENTS - This lock out device is designed to prevent turning of knob and access to keyhole.
4
Product Highlights:
  • 【Crystal Doorknob Features】The Diamond crystal knob is octagonal clear glass shape,with zinc alloy rosette and plate,Oil Rubbed Bronze finish,the door knob set is heavy duty and durable for last using
  • 【Privacy Function】Ideal for bedroom/bathroom where locking mechanism is required for your interior room,push pin button inside to lock,keyless outside,but you can use a hex key/any thin tool to insert the release hole to open the door from outside
  • 【Universal Knobset】The door knob set is universal for your left/right handed doors,the latch can be adjusted to 2-3/8 inches or 2-3/4 inches(60mm or 70mm),fit for common door thickness from 1-3/8 inches to 1-3/4 inches(35~45mm)
  • 【Easy Installation】All accessories and installing instruction included,please check the mounting accessory before installing,please contact us if there is any missing accessory
  • 【After Sales Service】We can refund or send you the replacement for any quality issue,please contact us firstly if there is any problem
5
Product Highlights:
  • ANSI Grade-3 Security Keyed Entry Ball Knob
  • Steel Round Corner Adjustable Latch
  • Nickel plated bolts
  • Rich Satin Stainless Finish
  • Limited lifetime mechanical and 5 year finish warranty
6
Product Highlights:
  • ★Special Design---Special double button design with soft TPR material increased friction with the door knob. When you need to open the door,press the double buttons and turn the door knob easily.
  • ★Easy Installation/Removal---No Adhesive, no drill and tools need,no harm to the door.Take off the door knob cover then set it on the door knob and close the two covers,the door knob is in lock.It can be easily removed by a screwdriver.
  • ★Why need it---Prevent babies from opening the door and getting into dangers like the toilet or the storeroom and get injured;Prevent babies from going in or out of the house without adults' superision; Prevent children from playing with the door and pinching their fingers.
  • ★Safety & Eco-Friendly---Made of Eco-Friendly PP and TPR material. EUDEMON baby safty door knob cover has pass Mechanical and Physical Properties test(EN71). Parents can use them safely on the door knobs.
  • Please note that this product has been updated, with only a little difference in appearance, but no change in function. You may receive products both in old version and the new version, but the function is completely the same, please feel free to purchase.
Sale7
Product Highlights:
  • ANSI Grade-3 Security Privacy Ball Knob
  • Privacy locking Function: Ideal for bedrooom and Bathroom use only.
  • "New" exterior privacy release button: operate with coin or standard screwdriver only. No Privacy key required. Does not have a keyed cylinder, not for use where keyed security is required.
  • Steel Round Corner Adjustable Latch (not suitable for Drive-in application). Nickel plated bolts.
  • Limited Lifetime warranty and 5 year finish warranty
Sale8
Product Highlights:
  • Direct fit replacement unit
  • Unit features Dorman engineered quality enhancements
  • Backed by Dorman's limited Lifetime Warranty
9
Product Highlights:
  • EASY INSTALLATION: Install your lockset in a flash. All you need is a door and a tool set! No need for professional door fitters, you can do it yourself!
  • PRIVACY FUNCTION: The door lever can be locked inside and opened outside in emergency WITHOUT keys. Use it for your guest rooms, bedrooms, bathrooms, interior locking doors and other privacy needs; Material: Zinc Alloy; Finished Color: Matte Black.
  • ONE SIZE FITS MOST: This black door lever fits 1-3/8" to 1-3/4" doors; Reversible for both left handed and right handed doors. (Notice: The latch plate is unremovable.)
  • HEAVY DUTY: The solid zinc alloy and brass, smooth finish, polished appearance and substantial, easy-to-grasp lever will subtly elevate and enhance commercial areas or residences alike.
  • CLASSIC DESIGN: It’s not just a door lever — it’s a statement piece. These gorgeous levers with no protruding flanges, screws or rough edges ensures completely safe and easy operation, are sure to add a touch of sophistication to your home.
10
Product Highlights:
  • Round entry knob for use on exterior or interior doors where keyed entry and security is needed
  • Adjustable Backset - 2-3/8 inch or 2-3/4 inch (60mm or 70mm). Fits doors thicknes:1-3/8 inch to 1-3/4 inch (35mm to 45mm)
  • All locks can be opened with 1 key.Solid Column security bolt for anti-sawing protection.
  • Dimensions : Knob Diameter: 2.09"(53mm) , Rosette Diameter: 2.56"(65mm). Note : The square plate of the latch is unremovable
  • Conformed with ANSI Grade 3 Security. Metal construction adds strength, security and durability.Easy to install with all accessories included.

Last update on 2021-06-24 at 07:16 / Affiliate links / Images from Amazon Product Advertising API

So, these are the best door knob locks available on the market. We strongly recommend checking out the features, specifications, and real customer reviews before choosing any door knob locks. To help you make your choice easier, we’ve prepared the following buying guide:

How to Choose the Right Door Knob Locks?

Since there are dozens of brands offering various types of door knob locks on the market, it becomes very difficult for both new and experienced buyers to pick the right one. In order to get the perfect door knob locks for the money, you need to consider the following factors:

Quality & Performance

Your top priority when shopping for door knob locks should be quality and performance. You should find out what materials are used in making the door knob locks. Try to make sure that the model you are choosing is of top-notch quality.

Brand Recognition

As we mentioned earlier, there are dozens of brands offering various types of door knob locks. Top-tier brands are reliable and offer high-performing door knob locks. So, you need to consider choosing the perfect door knob locks from a reputed brand.

Features & Specifications

We already mentioned some of the key features and specifications of top-quality door knob locks. You should check out the specifications and features of each of these door knob locks before making your decision.

Rating & Customer Reviews

Finally, take a look at the overall customer rating and real customer reviews of each of these door knob locks. This will help you make the right decision.

Price

Price is another important factor that you need to consider when buying door knob locks. Though it always depends on your budget, you shouldn’t compromise any essential features for the price. In order to buy the perfect door knob locks, you should consider all of the factors mentioned above.

Final Words

We strongly believe that you will be able to find the best door knob locks from the above list. However, we recommend that you read the specifications and features of each of these door knob locks before deciding the right one for your needs.

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