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Maintain security – use the prime-line door hole cover plate to help maintain security and privacy on entry doors where the knob latch or deadbolt hardware is no longer being used.
Conceal holes – this door hole cover plate can cover bores and holes from 1/2” diameter up to 2-1/8”. Cover up holes that may allow for unwanted entry or invasion of privacy. All the necessary mounting hardware is included.



Additional home security – securing the weak spot of an entry door with a stainless-steel lock and door reinforcer can add additional home security and help you rest easy knowing you’re preventing forced entry.


August locks fit perfectly over most single cylinder deadbolts and aren't much bigger than your original thumbturn. Grant access with the august app: forget key copying. Upgrade your existing deadbolt: august smart locks fit on the inside of your door, making your regular deadbolt smarter, more secure and way more convenient.
Great for small kids, the housekeeper, or other one-time visitors. Quickly and easily share permanent, family and other people you trust, scheduled or temporary access to your home with friends, and never put a key under the doormat again. Face or fingerprint id for extra security: Use your phone’s biometric recognition for two-factor authentication optional. Keep your home's curb appeal: get smart lock functionality without changing the look of the outside of your front door. With auto-lock and doorsense, your home automatically secures once your door is closed, or after a set amount of time.

It can be used in any situation where you want to prevent others with keys from unlocking the doorknob. Diecast construction. This knob lock-out device is used to prevent access to a standard door knob.
The maximum outside diameter round door knob that can be protected with this lock-out device is 2-7/16 inches. Dimensions – this lock-out device can protect round doorknobs that have a max diameter of 2-7/16”. 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 doorknobs with round, slender shafts. Applications – this lock-out device is often used in evictions, in-home, on job sites, rentals, home sales, in-office storage knobs and more.

1. ULTRALOQ
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Accessory, ULTRALOQ UUL-UL3-DCP-SN UL3 BT Deadbolt Cover Plate, Satin Nickel
#adULTRALOQ #ad - Ultraloq smart lock is not included. Stainless steel. Works with Ultraloq UL3 Series. Covers up holes left by previous deadbolt.More information #ad
Brand | ULTRALOQ #ad |
Manufacturer | U-tec Group Inc. #ad |
Height | 1.6 Inches |
Length | 9 Inches |
Weight | 1.1 Pounds |
Width | 3.3 Inches |
Part Number | UL3-HCP |
Model | UUL-UL3-DCP-SN |
More information #ad
2. PRIME-LINE
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Satin Nickel, PRIME-LINE Door Hole Cover Plate, Increase Home Security on Entry Doors, 2-5/8 in. Diameter
#adPRIME-LINE #ad - Sizing – this door cover plate has a 2-5/8” outside diameter and fits on doors up to 1-3/4” thick. For further dimensional information, please see the line drawing. Easy installation – with only two fasteners to install, installation is quick and easy, and the door hole cover plate can conceal most bores and holes for additional security and privacy.Maintain security – use the prime-line door hole cover plate to help maintain security and privacy on entry doors where the knob latch or deadbolt hardware is no longer being used.
More information #ad
Heavy duty – made of heavy-duty gauge steel with a satin nickel finish, this door hole cover provides peace of mind and extra security, plus it’s durable and made to last. Conceal holes – this door hole cover plate can cover bores and holes from 1/2” diameter up to 2-1/8”. Cover up holes that may allow for unwanted entry or invasion of privacy. All the necessary mounting hardware is included.
Brand | PRIME-LINE #ad |
Manufacturer | Prime-Line Products #ad |
Height | 2.63 Inches |
Length | 2.63 Inches |
Weight | 0.22 Pounds |
Width | 2.63 Inches |
Part Number | U 10446 |
Model | U 10446 |
Warranty | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |
More information #ad
3. Safety 1st
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Safety 1st Secure Mount Deadbolt Lock
#adSafety 1st #ad - Fits most door locks not all. Fits deadbolts less than 2-1/6" wide that protrude less than 1" from the door. Assembly Required. No permanent damage to the door. Keeps child from opening a deadbolt lock. No adhesives or drilling required.More information #ad
Brand | Safety 1st #ad |
Manufacturer | Dorel Juvenile Group-CA #ad |
Height | 2 Inches |
Length | 8 Inches |
Weight | 0.34 Pounds |
Width | 6 Inches |
Part Number | HS162 |
Model | HS162 |
More information #ad
4. Stone Harbor Hardware
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Vintage Bronze by Stone Harbor Hardware, 1-1/4" Threaded Screw, 2-5/8" Diameter, Hole Filler Plate
#adStone Harbor Hardware #ad - Matches other Stone Harbor Hardware products of the same finish. Manufactured with durable material to create a long-lasting and high-quality product.More information #ad
Fits doors 1-1/4 inches to 2-9/16 inches thick. Measures 2 5/8 inch diameter. Includes all necessary mounting hardware for a hassle-free installation.Brand | Stone Harbor Hardware #ad |
Manufacturer | The Jeske Company #ad |
Height | 0.8 Inches |
Length | 2.8 Inches |
Width | 2.8 Inches |
Part Number | 50161-11P |
Model | 50161-11P |
More information #ad
5. Defender Security
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Bronze, 2-3/8 inch x 1-3/4 inch, Add Extra Security to Your Home and Prevent Unauthorized Entry-5-1/2 inch, Defender Security U 10750 Lock Reinforce and Repair Doors, single pack
#adDefender Security #ad - It also accommodates key-in knob locksets, deadbolts, or combination locksets. Easy installation – installation is a breeze, 2-3/8 inch backset, 5-1/2 inch hole centers, 2-1/8 inch bores, and all fasteners are included – extra security and peace of mind can be achieved in just minutes! Fits – 1-3/4 inch thick doors, 3-7/8 inch width x 10-7/8 inch height.Additional home security – securing the weak spot of an entry door with a stainless-steel lock and door reinforcer can add additional home security and help you rest easy knowing you’re preventing forced entry.
More information #ad
Can be used - this combo lock and door reinforcer can be used on wood or metal doors with mortise or drive-in latches. Reinforce and repair doors – reinforce weak spots on entry doors and repair damaged areas with this Prime-Line U 10750 Lock and Door Reinforcer.Brand | Defender Security #ad |
Manufacturer | Prime-Line Products #ad |
Height | 12.75 Inches |
Length | 2.25 Inches |
Weight | 1 Pounds |
Width | 5.5 Inches |
Part Number | U 10750 |
Model | U 10750 |
Warranty | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |
More information #ad
6. ULTRALOQ
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Biometric Fingerprint and Touch Keypad, 5-in-1 Keyless Entry Door Lock with WiFi, ULTRALOQ UL3 BT 2nd Gen Smart Lock + Bridge WiFi Adaptor, Bluetooth, Smart Door Lock Latch Edition Satin Nickel
#adULTRALOQ #ad - Works with ultraloq UL3 and Ultraloq UL3 BT. Ultraloq smart lock is not included. Covers up holes left by previous deadbolt. Stainless steel.More information #ad
Brand | ULTRALOQ #ad |
Manufacturer | U-tec Group Inc. #ad |
Height | 1.6 Inches |
Length | 9 Inches |
Weight | 1.26 Pounds |
Width | 3.3 Inches |
Part Number | UL3-HCP-AB |
Model | UUL-UL3-DCP-AB |
More information #ad
7. August Home
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August Wi-Fi, Silver, 4th Generation Smart Lock – Fits Your Existing Deadbolt in Minutes
#adAugust Home #ad - Works seamlessly with your smart home: built-in wi-Fi allows your lock to work with your favorite voice assistant, including Amazon Alexa, Google Assistant, Apple HomeKit, Samsung SmartThings and more. Add a keypad for use with codes: for phone-free moments, the dogwalker, connect a Smart Keypad sold separately to unlock the door with unique codes.August locks fit perfectly over most single cylinder deadbolts and aren't much bigger than your original thumbturn. Grant access with the august app: forget key copying. Upgrade your existing deadbolt: august smart locks fit on the inside of your door, making your regular deadbolt smarter, more secure and way more convenient.
More information #ad
Award-winning smart lock year after year: voted cnet editor's choice two years in a row 2020/2021, Best Smart Lock by Good Housekeeping 2021, Best Smart Lock by Tom's Guide 2021. August smart locks are installed only on the inside of the door, so your design for your front door doesn’t have to adapt. Great for small kids, the housekeeper, or other one-time visitors. Quickly and easily share permanent, family and other people you trust, scheduled or temporary access to your home with friends, and never put a key under the doormat again. Face or fingerprint id for extra security: Use your phone’s biometric recognition for two-factor authentication optional. Keep your home's curb appeal: get smart lock functionality without changing the look of the outside of your front door. With auto-lock and doorsense, your home automatically secures once your door is closed, or after a set amount of time.
Brand | August Home #ad |
Manufacturer | August Home Inc #ad |
Height | 2.75 Inches |
Length | 2.8 Inches |
Width | 2.8 Inches |
Part Number | AUG-SL05-M01-S01 |
Model | AUG-SL05-M01-S01 |
More information #ad
8. Defender Security
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Fits Round Doorknobs with Max Diameter of 2-7/8”, Removeable and Easy to Use, Defender Security S 4180 Doorknob Lock-Out Device – Doorknob Lock with Key to Block Access to Keyhole
#adDefender Security #ad - The cylinder cannot be removed when the device is closed and locked. Removable – the durable diecast cylinder is held in place with an O-ring and is removable when the device is unlocked and open. Doorknob lock-out device – the defender security doorknob lock-out device can be placed directly over the doorknob to prevent access to the keyhole.It can be used in any situation where you want to prevent others with keys from unlocking the doorknob. Diecast construction. This knob lock-out device is used to prevent access to a standard door knob.
More information #ad
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. Gray painted finish. The maximum outside diameter round door knob that can be protected with this lock-out device is 2-7/16 inches. Dimensions – this lock-out device can protect round doorknobs that have a max diameter of 2-7/16”. 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 doorknobs with round, slender shafts. Applications – this lock-out device is often used in evictions, in-home, on job sites, rentals, home sales, in-office storage knobs and more.
Brand | Defender Security #ad |
Manufacturer | Prime-Line Products #ad |
Height | 8 Inches |
Length | 2.31 Inches |
Width | 6 Inches |
Part Number | RNTLS-PN-732148271 |
Model | EP 4180 |
More information #ad
9. PRIME-LINE
#ad
Prime-Line U 9521 Edge Filler Plate, Gray Steel, 1-1/8 inch
#adPRIME-LINE #ad - Steel construction with a gray finish. Easy to install. 1-1/8 in. Height. Mounting hardware included. 2-1/4 in. Used to cover a mortise hole on a door edge. Width.More information #ad
Brand | PRIME-LINE #ad |
Manufacturer | Prime-Line Products #ad |
Height | 2.25 Inches |
Length | 0.13 Inches |
Weight | 0.1 Pounds |
Width | 1.13 Inches |
Part Number | U 9521 |
Model | 9197939 |
Warranty | Goods are warranted against manufacturing defects for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse. |
More information #ad