Heavy-Duty Home Security Door Lock | Aluminum Alloy Anti-Theft | Childproof Reinforcement Lock with 3-Inch Stop | Free Shipping

Stronger doors, safer homes.
The Aluminum Alloy Anti-Theft Door Reinforcement Lock is engineered for maximum security and child safety. With a 3-inch stop design, this lock prevents forced entry and adds an extra layer of protection to your main door. Perfect for homes, apartments, and offices, it’s easy to install and built to last.

Why Choose This Door Reinforcement Lock:

Heavy-Duty Aluminum Alloy – Durable and rust-resistant.
3-Inch Stop Design – Withstands up to 800 lbs of force.
Childproof Safety – Prevents accidental door opening by kids.
Anti-Theft Protection – Reinforces your existing door lock system.
Easy Installation – Mounts in minutes with included screws.
Free Shipping Included – Delivered to your door hassle-free.

Specifications

Material: High-Strength Aluminum Alloy
Finish: Brushed Silver / Black (Variants)
Dimensions: 3.9" × 2.4" × 0.6"
Weight: Approx. 230g
Force Resistance: Up to 800 lbs
Installation: Surface mount with screws (included)
Compatibility: Works with inward-opening doors

Package Includes:

1 × Door Reinforcement Lock
4 × Screws
Installation Guide

Variants:

Silver Finish – Modern brushed aluminum look.
Black Finish – Sleek matte black for contemporary interiors.

Notes:

Ensure door frame is solid wood or metal for best performance.
Not suitable for outward-opening doors.
Keep screws tight for maximum security.