bing tracking image
  1. Propane Accessories
  2. TorkLift
  3. Tank Locks
  4. Dual 20 lb Tanks
  5. Dual 30 lb Tanks
  6. Dual 40 lb Tanks
TorkLift Fortress GasLock Kit for Propane Tanks with 1/2" Threaded Rod

TorkLift Fortress GasLock Kit for Propane Tanks with 1/2" Threaded Rod

Our Price: $106.38
Propane Accessories
Shipping Weight: 1.12 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos


Need help with installation?
Locate installers near me
Lock down your propane tanks to keep them safe and secure on your trailer or RV. This specially designed lock attaches to the 1/2" threaded rod that is positioned in the middle of your dual propane tank setup. Great Prices for the best propane accessories from TorkLift. TorkLift Fortress GasLock Kit for Propane Tanks with 1/2" Threaded Rod part number TLA7702 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (88)
  • Q & A (0)
  • Videos (1)
  • Photos

TorkLift Propane Accessories

  • Tank Locks
  • Dual 20 lb Tanks
  • Dual 30 lb Tanks
  • Dual 40 lb Tanks
  • Red
  • TorkLift
  • Aluminum

Lock down your propane tanks to keep them safe and secure on your trailer or RV. This specially designed lock attaches to the 1/2" threaded rod that is positioned in the middle of your dual propane tank setup.


  • Lock secures 2 propane tanks together when they're mounted on your trailer or RV
  • High-impact, aircraft-grade aluminum construction
  • No modifications to tanks or trailer required
  • Fast, easy installation
    • Remove handle from threaded rod between tanks
    • Place GasLock U-bracket over rod so tab with hole faces front of trailer
    • Install lock handle over threaded rod and tighten, then line up handle with locking hole in bracket
    • Insert pin lock through handle and U-bracket to secure
  • 1 Key and a theft-deterrent sticker included
  • Made in the USA


  • Application: dual propane tank setups
    • 1/2" Threaded rods
  • Lifetime warranty

TorkLift Fortress Propane Tank Lock

A7702 Tork Lift Fortress Gas Lock Propane Tank Lock - 1/2" Rod

Item # TLA7702

Video of TorkLift Fortress GasLock Kit for Propane Tanks with 1/2" Threaded Rod

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for TorkLift Propane Tank Fortress GasLock Kit Review

Randy: Hey guys. Randy here at Today we're taking a look at a new product from Torque Lift. It's the Fortress gas lot. This is going to give us an excellent solution that we really haven't had in the past. This allows us to lock two propane tanks down to the front of our camper or RV, and prevent them from being removed.

Now, not only does it secure our tanks as you can see, but also our regulator, and also our hoses. So we're not going to have to worry about all of those pieces disappearing causing us a very expensive replacement. Whether you've got the half inch, or three eighths inch threaded rod, we're going to have a solution for you. It's going to have a heavy powder coat finish on it, and it is lightweight. It's made out of military grade aluminum.

So we're not going to really have to worry about any corrosion, or any issues like that. Also, going to have our lock right here. Nice heavy duty lock. Pull that off and see we've got our cap open there.That'll allow us to slide our key in there, lock and unlock that, and then back this off if we want to get our tanks off to take them and have them filled or whatever we might need to do. Now to install our Fortress lock, we'll need to remove the old style wing nut.

Just going to loosen that up and set it aside. Then we can bring our Fortress lock right down and over. I'm going to position this tab rearward. Since our regulator is right here, I want to have enough room for my lock. Now we'll take that stainless washer.

We want to place that down on. Then we can get that threaded down and on. Now, we're going attention this just like we would our normal keeper here. We just need to ensure either this tab or this tab lines up with the tab on that lower section, so we can get our lock through.So right there looks good. Then we can place the lock through. We have the option of placing it either way we want. I do recommend though that we put this rubber spacer on the top side. We can put our lock on this way. But as that goes down the road, that'll kind of keep it from rattling. We won't hear that metal noise as it bounces up and down. We just put our cap on. But at that point, everything's going to be nice and secure and we won't have to worry about anybody getting away with our tanks. That's going to complete our look at the Fortress gas lock from Torque Lift.

Customer Satisfaction Score:

Customer Reviews

TorkLift Fortress GasLock Kit for Propane Tanks with 1/2" Threaded Rod - TLA7702

Average Customer Rating:  4.8 out of 5 stars   (88 Customer Reviews)

Lock down your propane tanks to keep them safe and secure on your trailer or RV. This specially designed lock attaches to the 1/2" threaded rod that is positioned in the middle of your dual propane tank setup.


Very easy to use and perfect for what it is intended for. Came earlier than expected and good quality. Just make sure you measure correctly not like me, and order the correct size. etrailer customer service was great on helping me return the wrong size and ordering the right one.




It works just as intended. I needed it so that is why I bought it, but after looking a little closer at my setup I could have secured it with some mods of my own and saved the cost. But overall the product is quality and works.


Might be good on some trailers but it did not work on my Grand Design. See photo. Could not get it pushed down far enough to put padlock on before the end potecting the nuts jamed against the upright threaded stock.


Timely delivery. Easy installation.
note: Raising the regulator caused interference with slam latch. Had to bend bracket as shown in photo. Otherwise good product.


I like knowing my tanks are locked-down. Access to the top of my tanks is not adequate for locking to be easy, but I can manage with this setup.



This tank lock has always worked well for me, and I have a better piece of mind knowing they are safer with this lock.


The lock was easy to install and secures the dual propane tanks nicely.


Very happy with this lock for my propane tanks. Very durable and attractive


A good product took some work to install, had to figure out where to put the regulator bracket.



Good, no issues


This lock is incredibly easy to install. It keeps the tanks secure, and, of course, locks them tightly in place. The only thing that surprised me is that this appears to be a different design than pictured. The handles are bent upward as in the Airstream lock picture....even though the packaging says it's the TLA7702, not the Airstream variety. Regardless, this thing looks, feels, and works great!

Adam P.


Still going strong! Im very glad I made this more stolen tanks!


The product works like it's supposed to. I feel better knowing that I have a good lock on my propane tanks for when I'm camping or just keeping it stored at home! I ordered the wrong size, had to send it back and ordered the correct size. I spoke with Rebecca and she was great! She took my order over the phone and sent me the UPS label right away! The customer service is really great! I've received my refund for the first order. I would definitely do business with this company again!!!



I am still as pleased with this product as I was a year ago.


Exactly what I needed! I needed something to keep my propane tanks "mine" while in storage and was the first place I looked - reasonably priced and quick delivery.



Totally satisfied - still have my tanks :



If the rod is threaded on both ends, take the bar apart and two nuts underneath the tank holder bar so no one can unscrew from the bottom. I found that you can get a pair of pliers on the rod and remove it from the bottm as the hole thing will come right out.


Excellent product. After someone cut my bike cable type security and took a full 30 pound propane tank off of my trailer in 2014 I had to find a better way to secure my tanks. After some searching this propane tank lock was the answer. eTrailer has the best price I could find on it. Purchasing was easy and shipping was fast. Thanks eTrailer.


We had fallen victim to thieves that thought they needed our propane tanks more than we did. So after replacing our tanks, I found this lock setup. This will not stop every thief because it can be cut if they had the time, but it curbs the quick grab. I also like that this lock adds another layer of protection to keep the hold down from loosening up during travel. After having this lock for 1 year already, i still like it and would buy it again.


Simple installation, works great, keeps my tanks and batteries secure. I recommend this item to anyone needing to secure their propane tanks. I made a bracket to secure my batteries and incorporated this lock for security.


I took a chance when I ordered it, because I did not even have my new camping trailer yet. In fact it was 500 miles away. Fortunately I ordered the correct size. It fit beautifully (once I read the instructions). I live in an area where they will steal your teeth while you are talking to them. There aren't even enough police to come take a report. Nothing will stop these buggers. The judges let them go without consequences before the ink is even dry on the paperwork.


If it's not clear from the picture, the lock itself in this unit is merely something that keeps the replacement fly-nut assembly from turning freely.

Fly-nut is nice gauge stiff steel with a very nice powder coating. You'd need to really wail on it with a heavy hammer (and at a difficult angle) to bend it enough to defeat the lock. One year in and no rust on either the lock or the fly-nut, great piece of mind and looks sharp with the powder coating too


Easy to install and works great.



Working perfectly


Excellent. I previously restored a 72 airstream and found this product to secure the tanks now I'm re doing another camper and want the same secure tanks. I don't trust my new tanks to be there when I return from the woods. Now I can go off and hunt and have gas when I return. I will always reccomend this product. Simple and effective. Thanks


I just got the torklift fortress gaslock 1/2" today. Delivery was on time and I love the lock, it works great to secure our propane tanks. I would highly recommend the locks and shopping with etrailer. Thank you.


Had this lock for about a year. It has held up great to weather. Defiantly more secure then any other lock I have found to lock propane tanks. Sure if someone wants them they could get them but they will work for them and others would be easier to take. Very pleased with this lock and would recommend it.


Received the Torklift fortress kit today. I installed kit in 5 minutes!! Taking road trip this 4th of July. My propane tanks won't go amiss this trip!!!! Thanks!! Terry


Just installed the lock and the install was ver y easy. Now we will see if I can forget about chains and locks to secure the propane tanks. I believe you have a super product.
Thanks, JB


Communication was excellent (advised of delay and new delivery date etc.), product as described, best darn packing job I have ever seen! Arrived in excellent condition despite the fact that it was several heavy items. Continued satisfaction from etrailer with multiple purchases thus far.


I believe this is a good reliable product that is easy to install once you get good directions. The product fits snug tight with little vibration. The price was reasonable and was shipped quickly.
The directions that came with the product are terrible.


My contact via email with customer service department was a pleseant surprise as they responded quickly and was very helpful. I received the 2 items that were ordered for our travel trailer in a very timely manner.
I will definitely use etrailer again for any of my trailer needs.


Put this on my trailer about a year ago and still have both Propane bottles. Easy install and seems to be a quality product. Thanks etrailer.

Show More Reviews

See what our Experts say about this TorkLift Propane Accessories

  • How to Choose Correct TorkLift Fortress GasLock Kit for Propane Tanks
    TorkLift offers the 1/2-inch version of their Fortress GasLock Kit for Propane Tanks, part # TLA7702, and also a 3/8-inch version, part # TLA7701. To determine which is correct for your trailer just measure the diameter of your vertical propane support rod. In the linked video at the 0:50 mark you can see this rod. If your rod measures 1/2-inch in diameter use kit # TLA7702; if it measures 3/8-inches in diameter, then use kit # TLA7701.
    view full answer...
  • Propane Tank Lock Availability for a Trailer/RV
    The TorkLift Fortress GasLock Kit # TLA7702 that you referenced is deigned to fit propane tanks with 1/2 inch threaded rods. If instead you have a 3/8 inch rod you would want the part # TLA7701. You would need to measure the rod of your current setup to determine which you would need.
    view full answer...
  • Will TorkLift Fortress GasLock Work With A Propane Tank Cover?
    You will not have any problem using the TorkLift Fortress GasLock with any propane tank cover. In the attached picture you can see that the lock is not any taller than the metal protective flange (ears) on the top of the propane bottles. For Airstreams with 3/8" threaded rod use part # TLA7771 For Airstreams with 1/2" threaded rod use part # TLA7770 For standard 3/8" threaded rod use part # TLA7701 For standard 1/2" threaded rod use part # TLA7702
    view full answer...
    Image 1 for
  • Locks for RV Propane Tanks
    The Camco RV Polyethylene Propane Tank Cover for (2) 20-lb or 30-lb Steel Tanks - Colonial White # CAM40532 does not include locks. However, you can add a lock to your propane tanks. Use # TLA7702 if you have a 1/2 inch thread or # TLA7701 for a 3/8 inch thread.
    view full answer...
  • How to Determine Which TorkLift Fortress GasLock Kit for Propane Tanks Will Fit
    The threaded rod sizes for the TorkLift Fortress GasLock Kit for Propane Tanks # TLA7701 and # TLA7702 simply refer to the diameter of the vertical propane support rod on your existing setup. You can take a quick measurement on your propane rod and if it has a diameter of 3/8 inches, you will use # TLA7701. If it has a 1/2 inch diameter you will instead use # TLA7702. For precise measurements, using a digital caliper like # PTW80157 can be very helpful. These are also nice to have around...
    view full answer...

Do you have a question about this Propane Accessory?

Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jacob T
Video Edited:
Jacob T
Employee Dustin K
Video Edited:
Dustin K
Employee Randy B
Installed by:
Randy B
Employee Hayden R
Installed by:
Hayden R
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee Zach D
Video by:
Zach D

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

Product Experts Available Now!
Call 1-800-940-8924