‎Prime-Line Spring-Loaded Door Reinforcement Locking Mechanism

Last updated date: January 6, 2022

DWYM Score

9.8

‎Prime-Line Spring-Loaded Door Reinforcement Locking Mechanism

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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.

Update as January 5, 2022:
Checkout The Best Door Locking Mechanisms for a detailed review of all the top door locking mechanisms.

Overall Take

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.


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

Expert Summarized Score

10.0
4 expert reviews

User Summarized Score

9.4
18,793 user reviews

What experts liked

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

What experts didn't like

Sharp edges. Not durable with frequent use.
- SafeWise
Can only be locked when you’re inside.
- Alert and Secure
Very sharp edges. Old design.
- Door Lock Hub

An Overview On Door Locking Mechanisms

Homeowners have more options than ever when it comes to locks. You can choose digital locks that let you leave home without a key and deadbolts that can withstand up to 800 pounds of force. There are also sliding door locks you can install on outbuildings or interior rooms and plates that will keep your existing deadbolt in place, preventing children from unlocking doors while you aren’t looking.

The first question to consider is whether or not you need another door-locking mechanism — and if so, where? Even if your hometown is the very picture of small-town America, a lock can give you peace of mind. And if you own a home in a higher-trafficked area, such as a big city or even a suburb close to one, your safety might be a real concern that can be alleviated by a simple purchase.

You then need to decide where a better lock would come in handy and what your needs are (for example, which way does your door swing? Does the existing hardware present any problems for switching locks out?). You’ll also have to think about what kind of functions and footprint you want your locking mechanism to have and whether you need the lock to use the same key as other locks in your home. You may also want to consider what kind of style and finish you want.

If you rent, things can be a little more complicated. Your landlord should have installed at least a standard deadbolt before you moved in, but those deadbolts might leave something to be desired. Before you pull out the screwdriver or drill, check your lease. You may be prohibited from doing any work on your rental that can leave a mark, including installing locks. Whether your rental agreement permits it or not, though, running this project by your landlord is always a good idea — especially if it’s something that you’ll leave behind when you move out.

The most common type of exterior deadbolt has a single cylinder. This type only locks on one side, so when you aren’t home, you won’t have your deadbolt in place. Single-cylinder locks are often installed on apartment doors to provide the minimum extra security necessary to residents. They can work fine if you just want a little extra protection.

A double-cylinder deadbolt lock, however, gives you an extra layer of security by providing a lock outside as well as the inside. Simply insert the key and your home will be secured even when no one’s on the other side of the door to activate the lock. The downside of a double-cylinder lock, which requires the use of a key on both sides, is that it makes it harder to leave the home in a hurry or when you’re somehow incapacitated. In fact, you may have to check the legality of double-cylinder locks in your local area, as they may be prohibited by certain fire codes.

The Door Locking Mechanism Buying Guide

  • Locks are rated according to standards set by Builders Hardware Manufacturers Association. The top rating is BHMA A, with B being second and C being third. Locks are rated separately for security, durability and finish, with the certification affixed to the packaging of each lock using a label.
  • Shop for sturdy locks designed to withstand tampering of the hardware (via tools) as well as brute force.
  • Consider whether you need something tamperproof on the inside of the door. For example, do you need your lock to be childproof? If so, you could install a plate to lock your deadbolt into place. You could also place it higher so only adults can reach it.
  • If you already have a deadbolt, look at how it’s installed to determine whether or not it easy it might be to replace. You may want to choose a similar locking mechanism to ensure a proper fit.
  • The finish of the lock helps it look nice, but also impacts its durability. Brushed nickel over a stainless-steel base can ensure your lock gives you years of reliable use. It’s especially important to look for a rust-resistant option for outside door locks since they’ll be exposed to moisture year-round.
  • A keyless lock can be convenient since it eliminates the need to dig your keys out every time you return home. You will also be able to issue codes to visitors like service providers or family members. You can easily change the codes if you ever want to restrict access to someone who had it before.