Brinks 675-83001 Heavy Duty Dual Function Door Security

Brinks Door Security Bar (Reviewed 2022)

Our Ratings

Sturdiness 4.5/5​

Durability 4.8/5​

Versatility 4.2/5​


Reviewed by: John Fox

Editors Rating

Getting Started

The brinks security bar is a door-jamming device that is consistently rated as one of the best out there, in our testing we found it performed better than other similar models. The security bar is made of steel and installs in seconds.

Home Door Security Bar

Installing a home security bar is one of the most reliable ways to secure a door against forceful entry. Home security bars are designed to fit both sliding doors and hinged doors. In particular, home security bars offer variable length and high friction that allow security bars to secure any door from inside.

About Brink’s

Brink’s is an American private security company. Brink’s home security is a division of Brink’s that specializes in smart home security and physical security.

The wide range of services offered by Brink’s implies that Brink’s understands security from every possible perspective. And the Brink’s security bar is proof of this.

The Brink’s Door Security Bar is made with a steel alloy, making it durable and unbreakable. The length can vary, and the bar can be shrunk to almost half its full size. Yet, it’s impossible to contract the length forcefully. We go into the exact features of the product in more detail in the following section.

Brinks 675-83001 Heavy Duty Dual Function Door Security


  • Brand: Brink
  • Mounting Type: Swivel
  • Material: Alloy Steel
  • Item Weight: 2.37 pounds
  • Item Dimensions: ‎1.25 x 1.25 x 44 in

What we Liked

  • Safe and Secure
  • Portable Design
  • Heavy-Duty Material
  • Dual Function Door Bar
  • Adjustable in Height
  • Lifetime Warranty

What We Didn’t

  • Make sure you follow the instructions on how to properly install the security bar or else it will old not function as expected
  • Make sure you measure your door right so you can have the correct security bar

Features and Benefits of the Brinks Door Security Bar


The feature that impressed us the most was the high friction offered by the rubber bottom. For hinged doors, security bars work using friction. When someone attempts to open the door, the friction between the bottom of the bar and the ground opposes the force applied by the intruder, keeping the door closed.

But, the force of friction only depends on the two materials and the normal force (we’ll talk about the normal force in the next section). Contrary to what your initiation might say, having a wider bottom would not increase the force of friction; it would only distribute it evenly. (1)

For the scope of this section, the only factor that can increase the force of friction between the bottom of the bar and the floor is material. Security bar manufacturers cannot control the material your floor is made of, but they can choose the material of the bottom of the bar to maximize friction. And they do so here.

There is no material that offers the highest amount of friction against all materials, but rubber comes close. But, rubber comes in many forms, and different impurities are added in rubber to control different characteristics such as hardness and plasticity. Brink’s has experimented with different variations of rubber in terms of the amount of friction different kinds of rubber offer with common floor materials, and the rubber used to make the shoe of the Brink’s Door Security Bar is the highest friction-offering material they could find.

This means that the Brink’s Security Bar can resist a large amount of force before it slides. For most floors, the force required is so large that it’s not humanly possible to apply.

However, rubber does not offer much friction against tile or marble. If your floor is made of tiles, see if you can force the door open when the bar is in place. If the door can be opened, it means that the friction isn’t enough to oppose your applied force. You can increase friction by gluing a patch of carpet or flooring to the floor. Alternatively, you could roughen up the small patch of the floor where the shoe of the bar sits using superglue. This method worked really well for me, and I’m certain this has even more friction on wooden floors.

The Right Angle

The force of friction depends on the materials, but it also depends on the force by which the material is being pushed downwards. You can test this by placing a finger on a surface and dragging it; you’ll have no trouble. But if you force the finger downwards then try to grab it, you’ll feel an increased force of friction between your finger and the surface.

When a security bar is in place, and someone attempts to open the door, some of the force gets transferred into downwards force. This downwards force further increases friction and makes the door even harder to open. This can result in about 350 pounds of opposing force, making the door impossible to force open.

This phenomenon is mind-boggling; the force they apply to open the door increases the force of friction between the ground and the bar and makes the door even harder to open. It’s a feedback loop that makes the door impossible to open.

But, this only happens at a particular angle, a sweet spot. If the angle is too small (nearly perpendicular), the bar will not be able to fight the intruder’s force in the right direction. If the angle is too high, only a small portion of the intruder’s force will be used to force the bar downwards, and there won’t be much of an increase in friction. The perfect angle depends on the floor material, but it lies somewhere between 20 to 30 degrees from the vertical. (2)

But, you don’t have to buy a protractor, just place the bottom of the bar 15 to 20 inches away from the door, and you’ll be good. You can find the sweet spot by testing different angles by trying to force the door open from the outside.

What’s special about the Brink’s security bar is that it has height adjusting holes at every half inch. This means you can place the bar at an angle as close to that sweet spot as possible by fine-tuning the height and testing tiny adjustments in the angle.


The Brink’s Security Bar can be used to secure hinged doors, patio doors, or sliding doors. The security bar has a large length variability which ensures it’ll fit your door. The security bar has ahead to sit under a door handle, but the head can be removed if you want to use the bar for a patio door or a sliding door.

The Brink’s security bar has a 360 rotatable foot that ensures that the bar fits perfectly on the floor at any angle.

Portable Design

The Brink’s Security Bar has a full length of 44.5 inches, but it can be shrunk to 27 inches. The design is quite compact, and the bar can be easily carried anywhere.

Strong and Durable Material

The Brink’s security bar is made from a steel alloy. This ensures that the bar cannot be broken or bent, no matter the amount of force. This also means that this bar is going to last you a long time. The bar also comes with a lifetime warranty from the manufacturer.

Video Walkthrough

Wrapping Up

The Brink’s security bar is one of the best-designed security bars out there. It’s made from extremely durable materials and is perfect for sliding doors. Its high friction also makes the Brink’s security bar a really good option for hinged doors.

You may want to check other learning guides below on how to secure your windows and doors;


(1) force of friction –
(2) perpendicular –

Brinks 675-83001 Heavy Duty Dual Function Door Security Bar
  • 20 gauge heavy duty steel tube construction
  • Adjustable