❄️Summerfresh 50% OFF!🏡Door Reinforcement Security Lock – Inside-Only Secondary Latch for Compatible Inward-Opening Doors
❄️Summerfresh 50% OFF!🏡Door Reinforcement Security Lock – Inside-Only Secondary Latch for Compatible Inward-Opening Doors
Couldn't load pickup availability
🔒 FLIP • LOCK • RELEASE • REINFORCE
Add One More Locking Point Behind Your Door
A compact interior door reinforcement latch designed to add a secondary mechanical locking point from inside the room — simple to engage, quick to release, and independent of your main door lock.
🚪 Supplemental Security Without Another Key
Mount the lock on a compatible door and frame, then flip the locking arm into position when additional interior-side resistance is desired.
🔒 Secondary Interior Locking Point
Adds another mechanical point of resistance in addition to the door's existing latch or deadbolt when installed correctly on a compatible door and frame.
👆 Simple Flip-Style Operation
The hinged locking section can be moved between locked and released positions from the interior side without carrying a separate key.
🛡️ Compact Metal Construction
Supplier information identifies the main structure as aluminum alloy, giving the lock a compact rigid frame for everyday door reinforcement use.
🧩 Integrated Impact-Cushioning Strip
A soft contact strip is positioned along the locking section to help reduce direct hard-surface contact between the lock and compatible door surfaces.
🧩 Softer Contact Where the Lock Meets the Door
The supplier image shows a cushioned strip along the contact edge of the locking arm, designed to help reduce direct impact and marking during normal opening and closing.
🔩 Compact Hardware Built for Door Reinforcement
ALUMINUM-ALLOY BODY
Supplier-listed metal construction forms the main lock body and mounting plate.
HINGED LOCKING ARM
The moving section rotates across the installed position
to engage or release the secondary lock.
MULTI-POINT MOUNTING PLATE
Multiple mounting openings allow the base plate
to be secured to a compatible structural surface.
LOW-PROFILE FORM
The compact body stays close to the door edge
instead of projecting far into the room.
📌 Aluminum Alloy Does Not Automatically Mean “Rust-Proof Forever”
Supplier imagery promotes a treated surface and corrosion resistance, but no coating specification or salt-spray test data was supplied. Avoid promising permanent rust-proof or weatherproof performance unless supported by verified documentation.
👆 Lock and Release with a Simple Mechanical Motion
The supplier image shows the upper locking section rotating around its hinge, allowing the user to change between engaged and released positions without tools after installation.
🎨 Choose the Finish That Blends with Your Door
BLACK
Dark hardware finish
WHITE
Light hardware finish
⚠️ Added Resistance — Not an “Unbreakable” Security Guarantee
Door security depends on the entire assembly: door material, frame strength, screws, mounting surface, installation quality, hinges, existing locks, and the force applied. No supplemental latch can guarantee that forced entry is impossible.
🏠 Useful as an Additional Interior-Side Lock
🏠
Home Entry
🛏️
Private Rooms
🏢
Apartments
🚪
Compatible Doors
📐 Fit Matters More Than “Universal”
The lock must align correctly with both the door and the surrounding frame. Door swing direction, frame depth, trim profile, gap size, and available mounting surface can all affect compatibility.
📏 Compact Door-Edge Size
HEIGHT
76 MM
Approx. 3.0 in
WIDTH
35 MM
Approx. 1.38 in
DEPTH
17 MM
Approx. 0.67 in
📌 Check the Installation Clearance Before Drilling
Your supplied installation note calls for approximately 10–15 mm of clearance between the door frame and the fixed plate so the door can close correctly. Test the lock position before making permanent mounting holes.
🔧 Plan the Fit Before Final Installation
Confirm Door Direction
Check that the lock geometry matches the direction your door opens and the available interior frame surface.
Dry-Fit the Lock
Hold the lock and mounting plate in position before drilling to check alignment and clearance.
Check the Closing Gap
Confirm that the door can close without the lock binding against the frame or trim.
Mount to Solid Material
Use appropriate fasteners and make sure they engage suitable structural material rather than weak, loose, or damaged trim alone.
Test Lock & Release
Open and close the mechanism several times and verify that the door can be released quickly from inside.
📋 Product Details
| Product Type | Interior Door Reinforcement Lock |
| Supplier-Listed Material | Aluminum Alloy |
| Colors | Black / White |
| Approx. Overall Size |
76 × 35 × 17 mm Approx. 3.0 × 1.38 × 0.67 in |
| Supplier-Image Inner Section | Approx. 56 mm |
| Supplier-Listed Installation Gap | Approx. 10–15 mm |
| Package Options |
1 × Door Reinforcement Lock or 2 × Door Reinforcement Locks |
⚠️ Door Security & Emergency-Egress Notes
• Use this product as supplemental door hardware, not as a guarantee against forced entry.
• Overall strength depends heavily on the door, frame, fasteners, mounting surface, and installation quality.
• Do not install the lock where it would violate applicable fire, building, rental, accessibility, or emergency-egress requirements.
• Anyone inside the room should be able to understand and release the lock quickly in an emergency.
• Consider whether children, older adults, guests, or people with limited mobility could become unable to operate the release.
• Do not use the product to lock a person inside a room against their will.
• Regularly inspect the screws, mounting plate, hinge, locking arm, and surrounding door/frame material for looseness or damage.
🔧 Installation Notes
• Confirm dimensions and door compatibility before drilling.
• Use fasteners appropriate for the door-frame material.
• Avoid installing only into weak decorative trim if stronger structural material is available behind it.
• Keep the mechanism aligned so it can engage and release without binding.
• Stop using the lock if the frame, screws, hinge, or locking arm becomes loose, cracked, bent, or damaged.
ONE MORE LOCKING POINT FROM INSIDE
🔒 Add Supplemental Security to a Compatible Door
Compact aluminum-alloy construction, flip-style operation, and a simple interior-side locking design for compatible door and frame setups.
👉 Check the Fit & Shop Now
