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Mounting Bolts and Hardware for 12" Brake Assemblies

Mounting Bolts and Hardware for 12" Brake Assemblies

Item # BRKH12
Our Price: $29.10
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Shipping Weight: 0.73 lbs
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Use this hardware kit to mount (2) 12" brake assemblies on your trailer. Includes mounting bolts, nuts, and lockwashers. 1-800-940-8924 to order Redline accessories and parts part number BRKH12 or order online at Free expert support on all Redline products. Great prices and Fastest Shipping for Mounting Bolts and Hardware for 12" Brake Assemblies. Accessories and Parts reviews from real customers.
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  • Reviews (183)
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  • Videos (1)
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Redline Accessories and Parts - BRKH12

  • Trailer Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Hardware
  • Bolts
  • Redline
  • 12 Inch

Use this hardware kit to mount (2) 12" brake assemblies on your trailer. Includes mounting bolts, nuts, and lockwashers.


  • Allows you to install 2 trailer brake assemblies
    • Fits 12" brake assemblies without pre-installed mounting bolts
    • Works with electric or hydraulic brakes
  • Includes:
    • 10 Mounting bolts
    • 10 Nuts
    • 10 Lockwashers

38LW Lockwasher for Brake Mounting Bolt for 12" Brake Assemblies

191000 (7-5) Redline Brake Mounting Bolt

38N Redline 3/8"-24 Nut

Video of Mounting Bolts and Hardware for 12" Brake Assemblies

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

Video Transcript for Redline Trailer Brakes BRKH12 Review

Today we're going to take a look at the mounting bolts and the hardware for 12 inch brake assemblies. Now this hardware will allow you to install two trailer brake assemblies to the five bolt brake mounting flange on your trailer axle. This hardware is designed to fit 12 inch brake assemblies that do not have the pre-installed mounting bolts. It will work with either electric or hydraulic brakes. It includes everything laid out here on the table. It includes 10 of the one and a quarter inch long by three eighths inch diameter mounting bolts. and the head size on that is a nine sixteenth. Heres a nine sixteenth socket, you can see it fits perfectly.

Also comes with 10 of the three eighths inch by 24 size nuts, and they are the same size, nine sixteenth, and also the 10 lock washers. But that should do it for the review on the mounting bolts and the hardware for 12 inch brake assemblies.

Customer Satisfaction Score:

Customer Reviews

Mounting Bolts and Hardware for 12" Brake Assemblies - BRKH12

Average Customer Rating:  4.8 out of 5 stars   (183 Customer Reviews)

Use this hardware kit to mount (2) 12" brake assemblies on your trailer. Includes mounting bolts, nuts, and lockwashers.


I needed to upgrade my boat trailer from free-wheeling spindles to electric brakes because my new tow vehicle has a 5,000 pound tow rating only if the trailer has brakes. I chose the Dacromet coated brakes assemblies, this mounting bolt kit and the galvanized hub and drum kit. This mounting bolt kit seems to be excellent quality hardware that fit perfectly. I torqued to 35 lb-ft.

David S.


After one year these bolts are tight and free of any rust or corrosion.


Paid for this but the hardware was included with the other components.
Not a big deal just not needed..

Etrailer Expert

Katrina D.


Let me get your information over to our customer service department for them to further assist you.


Glad I purchased these when installing the new brakes, old nuts and bolts were corroded made the installation easier and added assurance of new hardware



Continues to work as before


Direct replacement!


nice complete set of backing plate fasteners.
me from pc mealing something together from the hardware store.


Fast delivery. Two thumbs up


Fit perfectly!


very poor packaging parts were damaged and missing, everything was just thrown into a large box nothing was individually wrapped on the inside. I don't know why I use this company this is not the first time this has happened

Etrailer Expert

Jenny N.


I apologize that the package arrived this way and I will let our shipping department know. Our customer service will reach out to assist you.


Ordered everything I needed on a Sunday and even spoke with a person. Quick shipping to boot..


Turns out my hub has integrated bolts, but it was nice to get shiny new washers and nuts in place of the rusty crude that was in there.


I purchased these brake assemblies to replace the old electric brakes on one axle of my 1963 vintage twin axle trailer. Best thing I ever did. The electric brakes were relatively simple to install and have been working extremely well. These new brake assembles have logged more than 8,000 since they were installed and have worked well with the brake controller and break-away cable system I also installed. I am very happy with this product.


When you replace everything from the axle spindle out, why would you not replace the brake assembly mounting plate bolts? The quality was good and we felt confident that the correct grade of bolt was used. Price was minimal when compared with the possibility of bolt failure if the old bolts or hardware/farm store bolts were used.


I ordered 4 non-self adjusting brake sets and recieved 2 self adjusting right sides and 2 non-self adjusting left sides. I needed the project to be complete and I installed them. When i tok the out of the boxs, there was some rebuilding as things were out of alignment from shipping. Initial adjustments on both sets was a little more time consuming because of the lack of large adjustments, but once set they are great. The electrical hook ups were easy. They stop my 5000+lb camp trailer just fine. Finally, hardware being purchased separately is annoying. They should be packaged together and the hardware should be free with purchase of the brake sets.


Nice job "e-Trailer"; received this "heavy" order very promptly; did not expect it so quickly in view of how other retailers/ manufacturers/ on-line businesses are behind in fulfilling orders. Packages (3) came all intact, well packed and product received in great condition. The order included:
> 5-Leaf Slipper Spring w/ Hook End for 6,000-lb Trailer Axles (2)
> U-Bolt Kit for Mounting 8,000-lb, Round Trailer Axles - 8" Long U-Bolts (2)
> Tandem-Axle Trailer Equalizer Kit for 2" Slipper Springs - 10-1/8" Long Equalizers (2)
> Dexter Nev-R-Adjust Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6K (2)
> Mounting Bolts and Hardware for 12" Brake Assemblies (2)
> Bearing Buddy Bearing Protectors - Model 2441SS - Stainless Steel (Pair) (2)
> Bearing Kit, 15123/25580 Bearings, GS-2125DL Seal (4)
> Optronics LED Combination Trailer Tail Lights - Submersible - 40 Diodes - Driver and Passenger Side.
These items are being utilized in the total suspension replacement of a 10,000 gvwr tandem axle trailer. Good sized job for a DIY'er. I expect that it will give my JD 2038 tractor a smooth and safe ride as it is towed/ hauled down the highway.
Thank you.
I would/will strongly recommend to a friend/relative or associate.
( I'd take a picture of the "project", but there is a vicious rain storm occurring outside; perhaps one or two pics to follow at a later time).


Just one of the many satisfied customers with the company etrailer. I have used this on line site to refurbish my used boat trailers over the last 10 + years. During this pandemic I sort of let my trailer sit around and just wait until the end is near to react and make the trailer road worthy. After 3 years in out of salt water (mostly in) you might get this. After acquiring new brakes and drums from etrailer it’s back to the salt water again. Thanks for the essential workers at etrailer George, Savanna, and Carol. Cheers


I rebuilt an old boat trailer that has been sitting outside for 10 years. It was in really bad shape & I could not read any of the bearing numbers, all had had was the dimension of the hub & the old bearings. Stacey A. at etrailer was very helpful in getting the right parts I needed & best of all when I got my parts they all fit. The brake kit was great just bolt them on. Very quick shipping & great service.



Excellent quality fasteners for the price. Bought thsesin case I needed to replace the entire brake assembly on my car hauler trailer. Did not have to replace them but will keep these for other projects that may com along. Will definitely order from etrailer when I need other items.


Brakes are on and looking/ working great. A much improved self adjust system than was the OEM brakes.
I could see the quality right off. Now no worries for another ten thousand miles. Thanks for your help etrailer

William J.


Still going strong....


I was initially concerned about finding the right parts as the trailer was fairly old. etrailer had just what I needed. The website is so elegant. I was able to find the right parts quickly and with comparative options to make a final selection. The how-to videos are great. This made installation a little more comfortable. Especially when you do not perform this type of work every day. The parts were of high quality and are working as expected. I highly recommend etrailer for any of your trailer needs.


If a new RV isn't going to have disk brakes, then they should all come with these. Pretty straight forward replacement. I didn't get new drums, just had the old ones turned.


Turned out that my axles had studs and not bolts. I did replace the nuts and washers though. I figured it was better safe than sorry to order new hardware.


Worked as they should.


I received some great advice and help from Leeza in selecting the correct product for my needs. Without serial numbers or identifiable model numbers on my existing trailer parts, she was able to determine the correct parts for my particular trailer needs (on a 25 year old trailer.whose manufacturer is no longer in business).
I received the parts in the time span indicated upon ordering, and they fit perfectly.
A good experience all around.


Recommend when installing new backing plates. Money well spent. Not much more to say about nuts bolts and washers. Direct fit and full set.


Great customer service and fast shipping

Show More Reviews

See what our Experts say about this Redline Accessories and Parts

  • What Size Bolts Are Used In the BRKH12 Kit?
    At this time we do not, but what I can tell you is that the bolts in the Mounting Bolts and Hardware for 12" Brake Assemblies # BRKH12 are just regular grade 5, 3/8"-24 x 1-1/4" bolts that you should be able to source locally from any hardware store.
    view full answer...
  • Replacement Brake Assembly Hardware for 10 inch or 12 inch Brake Assemblies
    Without knowing what size brake assemblies you have we have the part # BRKH12 which fits 12 inch brake assemblies and the part # BRKH10A which fits 10 inch brake assemblies. If you have something different let me know and I'll see what we have that fits.
    view full answer...
  • Bolt Kit Recommendation for Attaching Trailer Brakes
    Sounds like you are looking for a mounting bolt kit for your trailer brakes. For that we have the Mounting Bolts and Hardware for 10" Brake Assemblies # BRKH10A. This is for assemblies that attach with 4 bolts. If instead you have 5 bolts you'd want the part # BRKH12.
    view full answer...
  • Replacement Hydraulic Brakes For 7,000 lb Dexter Axle
    They do not have to be free-backing but you can replace the hydraulic brakes on your 7k axle with the Hydraulic Brake Kit - Uni-Servo - Free Backing - 12" - Left/Right Hand Assemblies - 5.5K to 7K # AKFBBRK-7. You will also need the Mounting Bolts and Hardware for 12" Brake Assemblies # BRKH12.
    view full answer...
  • Recommended Replacement Mounting Hardware for Dexter Electric Trailer Brakes
    The correct replacement mounting hardware to use will come down to the size of brakes you have, I recommend the Mounting Bolts and Hardware part # BRKH10B for 10" assemblies or part # BRKH12 for 12" assemblies. These kits come with everything you need to secure two assemblies or one axle.
    view full answer...
  • Compatibility of Dexter Brake Assembly With a Lippert 6K Axle on 2010 Forest River 5th Wheel
    Dexter electric brake assemblies, including the # 23-458-459 set you've looked at are indeed compatible with Lippert axles. Lippert and Dexter brake assemblies share the same bolt pattern and overall dimensions, so they will be interchangeable on your Forest River 5th wheel. For mounting hardware, use the # BRKH12 kit. One kit will install two brake assemblies so for a tandem axle, you'd need two of them. If you click the provided link, you can see a video of the brake assemblies being...
    view full answer...
  • Recommended Replacement Electric Trailer Brakes for 7,000 lb Axles
    For electric trailer brakes on a 7,000 lb axle, I recommend going with a self-adjusting kit because they are going to be simpler to maintain; you won't have to manually adjust them as they will always be aligned properly. The kit I recommend is the following: - Electric Trailer Brake Kit - Self-Adjusting - 12" - Left and Right Hand Assemblies # AKEBRK-7-SA I really like these brakes because they are easily the best value for electric brakes, combining quality and effectiveness at a better...
    view full answer...
  • Brake Replacement for Dexter 023-326-00 Brakes
    From what I was able to determine from my research, the 023-326-00 brakes are 12" brakes from Dexter and were designed for trailer axles with between 5200 and 7000-lbs capacity. I don't believe that I've ever seen a brake mounting flange that has 6 bolts, so I'm assuming that you actually meant 5 bolts. To replace the brakes on your trailer, I recommend using the Electric Trailer Brake Kit # AKEBRK-7-SA, which comes with 12" left and right brake assemblies and are designed for up to 7000-lb...
    view full answer...
  • Recommended Hydraulic Brake Assembly for Trailer with 5 Bolt Mounting Flange and 15" Wheels
    Because you have a 5 bolt brake mounting flange on the axle, you will most likely have a 12" brake assembly on there. For an axle with a capacity of 5000-lbs to 7000-lbs I recommend using the Hydraulic Brake Kit - Uni-Servo - Free Backing # AKFBBRK-7. These will give you a reliable, free-backing 12" brake assembly that will work well and will be appropriately sized based off the information you've mentioned. These brakes do not come with mounting hardware so you will also need # BRKH12...
    view full answer...
  • Replacement Brake Assemblies for 7,000 Pound Axles on Tandem Axle Trailer
    I verified with Dexter that your axles are 7,000 pound axles. Therefore you'll need 12 inch brakes. I recommend the # AKEBRK-7-SA kit that includes both the left and right hand brake assemblies. They are side specific and labeled to make the install easier. These are also self-adjusting brakes so you'll need to adjust them upon install but that will be the only time. I've linked an install video for you. If you also need the mounting hardware for the brakes use # BRKH12. This kit...
    view full answer...
  • Will The Brake Kit # AKEBRK-7-SA Fit Existing AL-KO Hub And Drums?
    Yes, the Electric Trailer Brake Kit - Self-Adjusting - 12" - Left and Right Hand Assemblies - 5.2K to 7K # AKEBRK-7-SA will fit on your existing axle and fit your AL-KO 12 x 2 inch hub and drum assemblies. They will be compatible. These brake assemblies are side specific and labeled for you. They are self adjusting, so after the initial installation adjustment you won't need to check up on them for proper function. There is no break in period needed following that initial adjustment....
    view full answer...
  • Are 23-105-106 Brake Assemblies A Direct Replacement For A Dexter Brake System 23-357-358
    I contacted the manufacturer to confirm that Dexter Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 6,000 lbs # 23-458-459 are a direct replacement for your 23-357-358 brake assembly. Mounting bolts are not included but can be picked up at # BRKH12 I've included a video resource for additional information.
    view full answer...
  • Are 12 x 2 Titan Hydraulic Brakes Replacements for DICO 12 x 2 Hydraulic Brakes
    The free backing Titan Hydraulic Brake Kit # T4489600-500 are indeed a replacement for DICO brakes that measure 12" x 2" so they will work for you. You just need to make sure you need a capacity for a 6,000 lb axle and have a 5-bolt mounting flange. To mount these brakes you will need the Mounting Bolts and Hardware # BRKH12. I have added a link to a video review for you to check out as well of the Titan Hydraulic Brake Kit # T4489600-500.
    view full answer...
  • Compatibility of Dexter 6K Brake Assemblies with a 5200 lb Axle
    As long as your 5200 lb axle's brake drums have a 12 inch inside diameter and an inside depth of 2 inches, the Dexter # 23-458-459 self adjusting 12x2 inch brake assemblies would work perfectly for you. The assemblies include the mud and crud plugs to cover the adjuster holes, but the install hardware kit, part # BRKH12 is sold separately. The kit contains hardware for 2 brake assemblies. If you click the provided link, you can check out a video showing a typical installation.
    view full answer...
  • Can Dexter 6,000 Lb Electric Brake Kit Be Used On A 5,200 Lb Axle
    Yes, the brake assemblies part # 23-105-106 can be used on a 5.2k axle as long as the mounting flange bolt pattern is 5-bolts, the wheel size is 14-1/2", 15" or 16" and your existing hubs are 12" hubs. You will also need mounting bolts and hardware for 12" brake assemblies part # BRKH12. The only issue you may run into using brakes rated higher than the axle capacity is they could be too aggressive. However this can be overcome by adjusting the brakes themselves and/or turning down the...
    view full answer...
  • Brakes for 1998 Coachmen 285RK 5th Wheel Trailer
    You'll want to check the axle stickers on your 1998 Coachmen 285RK 5th Wheel, but as long as the axles are 5200 to 7000-lb axles with 12" drums, you will be able to use the Electric Trailer Brake Kit # AKEBRK-7-SA to replace the brakes on your rig. If you have a different axle capacity and drum size, please let me know and I can recommend a different brake kit. This kit includes the right and left brake assemblies, but does not include the mounting hardware. Since this kit doesn't come...
    view full answer...
  • Replacement Electric Brakes for American Horse Trailer With 6,000 Pound Axles
    Yes, we do have electric brakes for your 6,000 lb axle on your American Horse Trailer. I recommend using the Electric Trailer Brake Kit # AKEBRK-6. This comes with left and right hand 12" x 2" brake assemblies and is rated for 6,000 lbs. If you need mounting hardware you can use # BRKH12.
    view full answer...
  • Replacement Braking Assemblies for 2010 United Trailer with 5,200 Lb Axles
    Yes, the Electric Trailer Brake Kit part # AKEBRK-7-SA should fit the 5,200 lb axles you have on your 2010 United Trailer just fine. The Electric Trailer Brake Kit works with Dexter, Lippert (LCI), and AL-KO axles however the main thing you will need to check is that you have a five bolt brake mounting flange. If you do then the Electric Trailer Brake Kit should work for you without issue. We do not categorize fit by the make and model of the trailer. In order to install the new braking...
    view full answer...
  • Recommended Torque Specs for 12 Brake Assemblies
    We recommend torquing the mounting hardware, like part # BRKH12, 30 - 50 ft-lbs for the 12" Electric Trailer Brake Kit # AKEBRK-7-SA. Attached is an installation video for you to reference as well.
    view full answer...
  • Torque Specs for Installing 12" Brake Assembly to Axles
    To install the 12" Dexter Nev-R-Adjust Electric Trailer Brake Kit # 23-458-459 you'll use the Mounting Bolts and Hardware # BRKH12 which needs to be torqued to 30-50 ft-lbs.
    view full answer...
  • Torque For Installation of Dexter Electric Trailer Brake Kit 23-180-181
    According to Dexter, the torque should be between 25-50 ft. lbs. when installing the # 23-180-181. If you don't already have mounting hardware you'll need the Mounting Bolts and Hardware for 12" Brake Assemblies # BRKH12.
    view full answer...
  • Does Trailer Brake Assembly Kit AKEBRK-7-SA Include One or Two Brake Assemblies
    The price listed for the # AKEBRK-7-SA brake assemblies includes both the left and right 12 inch self-adjusting trailer brake assemblies. The mounting hardware is sold separately as part # BRKH12, which includes nuts, bolts and lock washers needed to install both brake assemblies. I've linked you to a product description video for the brake assemblies plus a video that explains how to do the initial adjustment of the brake shoes.
    view full answer...
  • How to Measure to Confirm Compatibility of Replacement Trailer Brakes
    Dexter Electric Drum Brake set # 23-105-106 is a left/right pair of 12 x 2-inch brakes that mount with 5 bolts. These brakes are intended for axles with a 6K weight rating. You'd need one kit per axle. These brakes can use mounting kit # BRKH12; use one kit for each set of brakes. To ensure compatibility you'll want to measure your hubs to confirm their size (see photo please) and check the mounting bolt pattern on your brakes flanges to make sure it too matches. If you can find a sticker...
    view full answer...
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  • Replacement 12 Inch Manual Adjusting Electric Drum Brakes for 5,200 Pound Dexter Axle
    Part # 23-106 is a 12 inch manual adjusting brake that fits your drums. Even though it's listed for 6,000 pound axles it's still what you need on your 5,200 pound axles. It's the right hand side, like you mentioned and part # 23-105 is the left, or you can get the kit of them together with part # 23-105-106. Since you need three (whch I admit is a little strange since you should replae them in pairs) you could get the kit for tow of them and then an extra left hand assembly. Everything...
    view full answer...

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