‎Prime-Line Spring-Loaded Door Reinforcement Locking Mechanism

Last updated: October 13, 2023

If you’re worried about tampering, this spring-loaded, reinforced satin nickel door blocker is a good high-security option for swing-in doors. It withstands up to 800 pounds of force and can be installed high up as a child-proof measure. Installation takes minutes with a screwdriver and included screws.

We looked at the top Door Locking Mechanisms and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Door Locking Mechanism you should buy.

Product Details

Key Takeaway: The design of this lock makes it child-safe — it can be installed above a young child’s reach — and tamper-proof.

In our analysis of 15 expert reviews, the ‎Prime-Line Spring-Loaded Door Reinforcement Locking Mechanism placed 1st when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

This high security door lock is constructed of extruded aluminum and comes in a satin nickel anodized finish. This reinforcement lock meets the Texas building code requirements, and it is designed to withstand up to 800 lbs. of force, making it virtually impossible to defy from the exterior. This lock features a spring-loaded, child-safe and tamper-resistant design that protects against unauthorized entry by preventing lock bumping and lock picking (while in the locked position). Installation of this non-handed reinforcement lock can be accomplished in just minutes, and it can be used on any swing-in door of any door thickness. All fasteners and installation instructions are included with this item. Fasteners include 3 in. long hardened screws that anchor into the door jamb and studs.

Expert Reviews

What reviewers liked

Low price tag. Easy installation. Force rating up to 800 lbs. 3” screws included.
Can withstand up to 800 lbs. of force. Includes long 3” hardened screws. 1-year manufacturer’s warranty.
Tough and tamper-resistant. Child-safe design. Perfect for wandering seniors. Flexibility in terms of installation.
Highly secure can handle up to 800lbs. of force. Child safe. Temperature resistance. Easy to install.

What reviewers didn't like

Sharp edges. Not durable with frequent use.
Can only be locked when you’re inside.
Very sharp edges. Old design.
View our Door Locking Mechanism buying guide for in-depth advice and recommendations.

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