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Top 9 Defender Security Door Lock – Door Lock Replacement Parts

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1. Defender Security

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High Security to Your Home and Prevent Unauthorized Entry – 3” Stop, Aluminum Construction Anodized Finish, Defender Security Bronze U 11126 Door Reinforcement Lock – Add Extra

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Defender Security #ad - Child-safe and tamper-resistant – this defender security door blocker by prime-line has a spring-loaded design that is both child-safe and tamper-resistant. Keep your home safe – designed to withstand 800 lbs. Of force, this u 11126 bronze finish door reinforcement lock helps to prevent doors from being kicked in, increasing your home security and keeping you and your family safe! Easy installation – the included 3” hardened screws make installation a breeze – extra security and peace of mind can be achieved in just minutes! Additional home security - use this bronze anodized finish high security door reinforcement lock for additional home security on any swing-in door of any door thickness.



It can be installed higher on the door where your children can’t reach! Plus, not only can doors not be kicked in by intruders, it protects against lock picking and bumping while in the locked position. Watch the video on this page for installation tips and operating instructions. It helps to ensure any door cannot be opened from the outside.
BrandDefender Security #ad
ManufacturerPrime-Line Products #ad
Height3 Inches
Length2.5 Inches
Weight0.35 Pounds
Width1.37 Inches
Part NumberU 11126
ModelU 11126
WarrantyGoods 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.

2. Defender Security

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Aluminum Construction Finish, Defender Security Brushed Chrome U 11325 Door Reinforcement Lock – Add Extra, High Security to your Home and Prevent Unauthorized Entry – 3” Stop

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Defender Security #ad - Drill bit. Security screws require holes to be pre-drilled with 1/8 in. Pre-drilling – the included 3 in. Keep your home safe – designed to withstand 800 lbs. It can be installed higher on the door where your children can’t reach! Plus, not only can doors not be kicked in by intruders, it protects against lock picking and bumping while in the locked position.

Watch the video on this page for installation tips and operating instructions. Of force, this u 11325 brushed chrome finish door reinforcement lock helps to prevent doors from being kicked in, increasing your home security and keeping you and your family safe! Easy installation – the included 3” hardened screws make installation a breeze – extra security and peace of mind can be achieved in just minutes! Additional home security - use this brushed chrome finish high security door reinforcement lock for additional home security on any swing-in door of any door thickness.

It helps to ensure any door cannot be opened from the outside. Child-safe and tamper-resistant – this defender security door blocker by prime-line has a spring-loaded design that is both child-safe and tamper-resistant.
BrandDefender Security #ad
ManufacturerPrime-Line #ad
Height6.44 Inches
Length1.5 Inches
Weight0.37 Pounds
Width3.81 Inches
Part NumberU 11325
ModelU 11325

3. Defender Security

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High Security to Your Home and Prevent Unauthorized Entry – 3” Stop, Aluminum Construction Finish, Defender Security Gold Anodized U 10826 Door Reinforcement Lock – Add Extra

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Defender Security #ad - It can be installed higher on the door where your children can’t reach! Plus, not only can doors not be kicked in by intruders, it protects against lock picking and bumping while in the locked position. Of force, this u 10826 gold finish door reinforcement lock helps to prevent doors from being kicked in, increasing your home security and keeping you and your family safe! Easy installation – the included 3” hardened screws make installation a breeze – extra security and peace of mind can be achieved in just minutes! Extruded aluminum construction with a gold anodized finish may not match gold or brass finishes.

It helps to ensure any door cannot be opened from the outside. Child-safe and tamper-resistant – this defender security door blocker by prime-line has a spring-loaded design that is both child-safe and tamper-resistant.

Keep your home safe – designed to withstand 800 lbs. Watch the video on this page for installation tips and operating instructions. Additional home security - use this gold anodized finish high security door reinforcement lock for additional home security on any swing-in door of any door thickness.
BrandDefender Security #ad
ManufacturerPrime-Line Products #ad
Height3 Inches
Length1 Inches
Weight0.35 Pounds
Width2.43 Inches
Part NumberRNTLS-PN-732135023
ModelU 10826
WarrantyGoods 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.

4. 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

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Defender Security #ad - Gray painted finish. Removable – the durable diecast cylinder is held in place with an O-ring and is removable when the device is unlocked and open. X 1-1/2 in. So it may fit loosely over some doorknobs with round, slender shafts. Note that the shaft cut-out is oval/oblong in shape and measures 1-3/4 in.

The maximum outside diameter round door knob that can be protected with this lock-out device is 2-7/16 inches. Applications – this lock-out device is often used in evictions, in-home, rentals, on job sites, home sales, in-office storage knobs and more. This knob lock-out device is used to prevent access to a standard door knob. It can be used in any situation where you want to prevent others with keys from unlocking the doorknob. Doorknob lock-out device – the defender security doorknob lock-out device can be placed directly over the doorknob to prevent access to the keyhole.

The cylinder cannot be removed when the device is closed and locked. Diecast construction. Dimensions – this lock-out device can protect round doorknobs that have a max diameter of 2-7/8”. 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.
BrandDefender Security #ad
ManufacturerPrime-Line Products #ad
Height8 Inches
Length2.31 Inches
Width6 Inches
Part NumberRNTLS-PN-732148271
ModelEP 4180

5. Defender Security

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Defender Security U 11316 Swing Bar Door Guard With High Security Auxiliary Lock, 1-Pack, Satin Nickel Finish

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Defender Security #ad - Of force. In case of emergency, the thumb turn will breakaway with approximately 100 lbs. Allows door to be opened slightly for viewing. Easy to install using included fasteners. Constructed from diecast zinc. Addition of thumb turn lock prevents use of emergency release tool to gain access. Adds security to entry door and helps to prevent forced entry.
BrandDefender Security #ad
ManufacturerPrime-Line #ad
Height2.49 Inches
Length4.21 Inches
Width1.25 Inches
Part NumberU 11316
ModelU 11316

6. Defender Security

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Recessed, Defender Security U 9553 Lock & Door Reinforcer, 2-1/8 in. x 2-3/8 in. x 1-3/4 in., Stainless Steel

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Defender Security #ad - Stainless steel. Backset, 2-1/8 in. Used to reinforce and repair doors to aide in preventing forced entry. Stainless steel. Height. Width x 4-1/2 in. Bores, 3-7/8 in. Stainless steel. Width x 4-1/2 in. Used to reinforce and repair doors to aide in preventing forced entry. Height. Fits 1-3/4 in. Fits 1-3/4 in. Thick doors, 2-3/8 in. Bores, 2-3/8 in. Backset, 3-7/8 in. Thick doors, 2-1/8 in.
BrandDefender Security #ad
ManufacturerPrime-Line Products #ad
Height4.5 Inches
Length1.75 Inches
Weight0.45 Pounds
Width3.87 Inches
Part NumberU 9553
ModelU 9553
WarrantyGoods 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.

7. Defender Security

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Black Painted Finish, Defender Security S 4003 Sliding Door Lock, Pack of 1, 1-9/16 in. Hole Spacing, Twist-in

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Defender Security #ad - Aluminum bolt. Black painted finish. Prevents door from being pried open or lifted out. Easy to install. Solid aluminum pin in a cast Zamac housing.
BrandDefender Security #ad
ManufacturerPrime-Line Products #ad
Height1 Inches
Length1.38 Inches
Weight0.1 Pounds
Width3.81 Inches
Part NumberS 4003
ModelS 4003
WarrantyGoods 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.

8. Defender Security

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1-Pack, Defender Security U 11317 Swing Bar Door Guard With High Security Auxiliary Lock, Classic Bronze Finish

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Defender Security #ad - Adds security to entry door and helps to prevent forced entry. Of force. Easy to install using included fasteners. In case of emergency, the thumb turn will breakaway with approximately 100 lbs. Addition of thumb turn lock prevents use of emergency release tool to gain access. Allows door to be opened slightly for viewing. Constructed from diecast zinc.
BrandDefender Security #ad
ManufacturerPrime-Line #ad
Height2.49 Inches
Length4.21 Inches
Weight0.56 Pounds
Width1.25 Inches
Part NumberU 11317
ModelU 11317

9. Defender Security

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Defender Security E 2279 Mortise Style Fluted Glass Door Knobs, Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2” Outside Diameter Knobs Brass Plated

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Defender Security #ad - Fluted glass knob set - the e 2279 fluted glass door knob set is ideal for replacing or updating interior door hardware. Square spindles. Projection and 17/64 in. This product is not recommended where young children are present.

Outside diameter knobs with 1-15/16 in. Replace antique knob sets – this e 2279 mortise lock set is the perfect choice for replacing broken knobs on old or antique/vintage interior doors. X 3-1/2 in. With beautiful classic fluted glass and brass plasted finish, it’s the perfect choice for your next project. Beautiful, classic design – the design of these clear glass fluted knobs with a brass plated finished knob base will fit perfectly into a vintage or antique style door.

Has glass, diecast and steel components. Warning: glass knobs can break under pressure or accidental impact. Some components may need to be purchased separately. Product info – these fluted glass door knobs are 2 in. Easy installation  – installation is quick and easy.
BrandDefender Security #ad
ManufacturerPrime-Line Products #ad
Height2 Inches
Length1.93 Inches
Weight0.67 Pounds
Width2 Inches
Part NumberE 2279
ModelE 2279
WarrantyGoods 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.