bing tracking image
  1. Accessories and Parts
  2. ABS Fasteners
  3. Trailer Brakes
  4. Electric Drum Brakes
  5. Hydraulic Drum Brakes
  6. Hardware
Lock Washer for Brake Mounting Bolt for 12" Brake Assemblies - 3/8" Diameter
ABS Fasteners

Lock Washer for Brake Mounting Bolt for 12" Brake Assemblies - 3/8" Diameter

Part Number: 38LW
In Stock
$1.67
Accessories and Parts
Add to cart
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

Customer Photos

Need help with installation?
Locate installers near me
3/8" Diameter lock washer fits mounting bolts for 12" brake assemblies. 1-800-940-8924 to order ABS Fasteners accessories and parts part number 38LW or order online at etrailer.com. Free expert support on all ABS Fasteners products. Great prices and Fastest Shipping for Lock Washer for Brake Mounting Bolt for 12" Brake Assemblies - 3/8" Diameter. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (32)
  • Q & A (0)
  • Videos (1)
  • Photos

ABS Fasteners Accessories and Parts - 38LW

  • Trailer Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Hardware
  • ABS Fasteners
  • Washers
  • 12 Inch

3/8" Diameter lock washer fits mounting bolts for 12" brake assemblies.


Features:

  • Lock washer fits 3/8" mounting bolts
    • Works with 12" brake assemblies
  • Zinc plating is corrosion resistant


Specs:

  • Diameter: 3/8"
  • Quantity: 1 lock washer


37WMSL0Z Lockwasher for Brake Mounting Bolt for 12" Brake Assemblies - 3/8" Diameter

Replaces 38LW Lockwasher for Brake Mounting Bolt for 12" Brake Assembly





Video of Lock Washer for Brake Mounting Bolt for 12" Brake Assemblies - 3/8" Diameter

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




Video Transcript for Feature Review Lock Washer for Brake Mounting Bolt for 12" Brake Assemblies

Today we're going to review part number 38LW. This is the 3/8 inch size Lockwasher for the Brake Mounting Bolt for 12" Brake Assembly. This locker needs to be used with the 3/8 inch size Brake Mounting Bolt. We do sell the mounting bolts separately also. That's listed on on our website. It is listed on the product page for this washer as a related product; it's part number 7-5.

The Lockwasher will go on the bolt. The other parts you would need that's a related product is the nut; that's part number 38N. This is the 3/8 inch size nut. All these three pieces together is what would hold your brake assembly to your trailer. That should do it for the review on part number 38LW.

This is the 3/8 size lock washer for the 3/8 inch brake mounting bolt for the 12 inch brake assembly.

Customer Satisfaction Score:

Ratings & Reviews

4.8

32 reviews
3/8" Diameter lock washer fits mounting bolts for 12" brake assemblies.

by:

ok



by:

Quick delivery, good quality and good price.



by:

Just as described, arrived promptly as always from etrailer.



by:

Replacing the brakes on a 50 year old FAN camper. After being assured that it had 10 inch brakes by another company"s "expert" because it has a 3500# axle, I finally received the correct 12 inch brakes from eTrailer. They arrived very quickly, and packaged well. The installation went almost as easy as the very helpful online video showed. Only difference was I had to slightly tighten the brakes to slide the hub over them, even though they are self-adjusting once in service. I have never owned or worked on a trailer before, and the installation was relatively easy. Thank you to George J for the followup email within 24 hours of delivery.



by:

The electric trailer brakes arrive within three days of ordering. The parts were a perfect fit. Etrailer' support is second to none! Helpful videos and live support available. The four trailer brakes were $100.00 less expensive than the nearest competitor and free shipping too!



by:

good quality product for reasonable price.e-trailer close to half price of what local dealers/suppliers are charging. shipping a little long, but it was in between chrismas and new years. will definately order from e-trailer again! thank you e-trailer



by:

Nuts and bolts are nuts and bolts but I can report that the self-adjusting brakes have worked well on our two-thousand mile trip this summer through the mountains of Utah, Idaho, Nevada, Oregon and Washington. They stop straight and true and don't seem to fade on those long down grades like the infamous "Cabbage Hill" near Pendelton Or.



by:

very easy to get the right parts, Great service.

We will be back as we need parts
etrailer is the place to buy parts great price and fast turn around time with complete service to help you figure things out.
Get your barring number and just call or go online. They will identify the parts you need for sure from the original barring you have.
-Joe M.



by:

The whole order was perfect. I'm rebuilding the running gear on a1976 3 horse slant then remodeling the whole trailer by converting the trailer into a communications trailer for HF radio for disaster response. Front area will be living quarters. I am in our State Guard as a radio operator and also in county emergency management. This trailer will be my shelter and operating station when deployed to hurricanes and such. Since I'm spending my own funds on this, the good prices on etrailer are greatly appreciated.



by:

Thank you for the great service and right parts , everything is working great. I will definitely buy from etrailer again when I need trailer parts !!



by:

bought a brake assembly that needed fastening to the axle; these nuts, bolts and washers were just what I needed. Thanks George J.



by:

The brakes were exactly the ones I needed. Not knowing I worked with John by cross matching numbers on bearings and so on. He held on the phone while I searched for the numbers. Excellent company, excellent people and very knowledgeable. Will use in the future for any product that they carry. Thank you very much and my horses are safer because of you. Washers, nuts, brakes, and everything else was great.



by:

My package arrived on time just as I expected. I was a bit disappointed with the packing. Everything came in one box. The washers were not in any bag they were just loose in the box. I ordered 10 but I only received 8. I think the other 2 fell out the bottom of the box that was not completely sealed with tape. You might want to put small parts in a zip lock bag. Anyway I only replaced the washers on one of the brakes and used the old ones on one.



by:

Ordered lots of parts on Monday, received most of them by Thursday. The received parts were well packaged and undamaged. A few of the parts they didn't have in stock so they had those drop-shipped to me which should be delivered in the next couple of days.
No supplier I have ordered any parts from has such a great technical reference web site or personal customer support. Yea, Rebecca - Well Done! Yes, I'm very happy with the pricing.
Thanks for your great support and I look forward to doing business with them again. More info to follow as soon as I can get the parts installed on my trailer.



by:

These lock washers worked great! Some of the best lock washers I've ever used! I highly recommend them!



by:

I have received my order but have not yet installed the assemblies, I would like to say your team was very helpful and got me the parts I needed at a great price. I will be placing future orders with Etrailer. Thank you!



by:

Carla M. worked with me to make sure we had all the right parts for my boat trailer. I am quite happy with her help.



by:

Great service. Etrailer does an excellent job of filling the orders and getting them sent. Shery was really good handling our order. Thanks again.



by:

The parts have worked out very well and have not had any problems. Thanks again for the parts and good service.

Millard J. profile picture

Millard J.

12/11/2017

Sorry it took so long to answer but have been real busy. My daughter is very happy with the parts that we have gotten from you and things are still good. Thank you for asking,



by:

It's a lock washer...it works!



by:

They are lock washers they are ok.



by:

All parts ordered were of excellent quality, Thanks!



by:

Received the right parts on time had a fair price



by:

As expected.
What I did not expect was
the fast delivery. It took two days for the item to arrive. Thanks.



by:

Split washer for 3/8 bolt


25
32
Show More Reviews

See what our Experts say about this ABS Fasteners Accessories and Parts

  • Recommended Electric Brakes For Timbren Axle-Less System And Dexter Trailer Hub/Drum
    The electric brakes I recommend to use with the Trailer Hub/Drum, part # 8-219-50 and the Timbren Heavy-Duty Axle-Less Trailer Suspension, part # ASR35HDS02 is the Dexter 12 inch Nev-R-Adjust Electric Brake Assembly, part # 23-459 for the right hand side. For the left hand I recommend part # 23-458. The mounting hardware for the brake systems is not included. You will need part # 38LW, part # 38N, and part # 7-5. For each brake you will need 5 of each.
    view full answer...
  • Replacement Bushings and Brake Assemblies for 6,000 lb Axles with 4-Bolt Brake Flange
    For your brake assemblies with the 4-bolt mounting flange, you will want the Dexter Electric Brake Kit for 4 Bolt or 5 Bolt Flange- 6K # 23-105-106-09. You will need one set for each of your 3 axles. If you need the mounting hardware the Brake Mounting Bolt for 12" Brake Assembly # 7-5 and lockwasher # 38LW along with nut # 38N are what you will need. For your bushings you will want the Two Piece Nylon Bushing - Qty 4 # SP05-080.
    view full answer...
  • Replacement Hydraulic Brake Assemblies and Drums with 008-201-09 Casting Number for Boat Trailer
    The 008-201-09 number you provided comes back on a Dexter Axle hub that we offer as part # 8-201-9UC3-EZ, a 12 x 2 inch brake drum. This hub uses a 25580 inner and 15123 outer bearing, so please check the reference numbers on your existing bearings to confirm that this hub is compatible. These hubs use a grease seal with a 2-1/8 inch inner diameter. Since it's kind of difficult to measure the inner diameter of a used grease seal, measure the OD of the spindle where the grease seal rides....
    view full answer...
  • Drum Brakes with Parking Brake for Timbren Heavy-Duty Axle-Less Trailer Suspension ASR35HDS02
    With the Timbren axle-less suspension system # ASR35HDS02 you can install 5-bolt electric drum brake assemblies like # 23-112 and # 23-113. These are left- and right-hand brakes with parking brake mechanisms that are rated for a 6K axle system. You can use lock washer # 38LW and nut # 38N to install the brakes. If you need a brake adjustment tool we offer part # W80630.
    view full answer...
  • Width of Brake Pads on 28 Foot Gooseneck Trailer With Dexter 10K Axles
    To determine which brake assembly you need, measure the width of your brake linings, as shown in the photo I edited for you. If your existing brake shoes measure 4 inches wide, the # 23-438 you mentioned would be an example of a good replacement for you if your existing brake assemblies use 7 mounting bolts (some use 4) and the diameter of the assembly is 12-1/4 inches in diameter when measured from the outside of one brake shoe directly across to the outside of the other shoe as shown...
    view full answer...
    Image 1 for
  • Brakes for 12" x 2" Drums and 4-bolt Mounting Pattern
    We only have one electric brake assembly that may work for you, the Dexter Electric Brake Kit # 23-105-106-09. This kit fits standard 5-bolt mounting flanges or AL-KO/Hayes 4-bolt flanges. If you have that type of 4-bolt flange you would likely know it because the pattern is offset, with the upper mounting bolt holes spaced further apart than the lower holes. These brakes are rated for 6,000 lbs and would require Brake Mounting Bolts # 7-5, Nut # 38N and Lock Washer for Brake Mounting...
    view full answer...
    Image 1 for
  • Recommended Brake Assembly 12x2 with 4 Bolt Mounting Pattern
    For your 12x2 electric brake assemblies, I recommend the Dexter Electric Brake Kit for 4 Bolt or 5 Bolt Flange - 12" - Left/Right Hand Assemblies # 23-105-106-09. These assemblies will fit your 4 bolt flange and will work well on your trailer. The mounting nuts are included but the bolts are not. If you need the bolts and lockwashers, I recommend # 7-5 and # 38LW. You may also want the brake adjustment tool # W80630 to install and maintain your brakes.
    view full answer...
  • Free-Backing Drum Brakes for M101A2 Military Dump Trailer
    To check the fit and compatibility for a set of replacement hydraulic drum brakes on your M101A military dump trailer you will want to match up a few things. Those things are drum dimensions, axle weight capacity, mounting bolt pattern and the compatible wheel sizes. The linked photo shows how to check your drum size. The Dexter free-backing 12 x 2-inch brake kit you mentioned # 23-342-343 is suitable for axles rated up to 7K, they use a 5-bolt mounting pattern and they fit wheel diameters...
    view full answer...
    Image 1 for
  • Will Dexter Brake Assemblies Fit on a Lippert Axle
    You will have no problem using a Dexter brake assembly on a Lippert 7K axle. We have installed several Dexter brake assemblies on Lippert axles at our shop. Lippert and Dexter use the same standard mounting pattern and brake sizes. If you want standard brake assemblies, you could go with the Right Hand brake # 23-181 and the Left Hand brake # 23-180. I recommend stepping up to the Dexter Nev-R-Adjust brakes, # 23-465 and # 23-464. The cost difference is very minimal compared to the standard...
    view full answer...
  • Torque for 7,000 lb, 12 Inch x 2 Inch Dexter Electric Brakes
    The Dexter Electric Trailer Brake Assembly - 12" - Right Hand - 7,000 lbs # 23-181 and Left Hand # 23-180 should should be torqued to 30-50 foot/lbs.
    view full answer...
  • Trailer Brake Assembly Recommendation for Dexter Assemblies Marked 023-106 for Both Sides of Axle
    Sounds like you need the brake assemblies part # 23-105 and # 23-106 to provide you with brake assemblies for both sides of your trailer. These are 6k Dexter brake assemblies that are 12 inches in diameter. For a replacement nut the part # 38N typically is what is used. For a lock washer part # 38LW.
    view full answer...
  • Replacement Dexter 6K Electric Trailer Drum Brakes
    To replace your Dexter right-hand 6K electric drum brake 023-358-00 you can use part # 23-106-09. For a left-hand brake use part # 23-105-09. If you decide to replace both left and right brakes we offer both in a set as part # 23-105-106-09. These brakes fit both 4-bolt and 5-bolt brake mounting flanges. If you need mounting hardware you can use bolt # 7-5, lock washer # 38LW and nut # 38N.
    view full answer...
  • Are Brakes Included With 7,000 lb E-Z Lube Dexter Trailer Hub and Drum Assembly
    The brakes are not included with hub and drum assemblies, including the 7K E-Z Lube Dexter hub and drum you asked about, but we do have the correct fit; the parts you need are the following: - Dexter Trailer Hub and Drum Assembly - 7K lb E-Z Lube Axle # 42866UC3-EZ - Dexter Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies - 7,000 lbs # 23-180-181 - (Quantity of 10) Brake Mounting Bolt for 12" Brake Assembly # 7-5 - (Quantity of 10) Lock Washers # 38LW The electric...
    view full answer...
  • Recommended Hubs Drums And Electric Brakes For 2000 Trails West 4 Horse Trailer
    From my research it looks like you have 6,000 lb axles on your trailer. You may want to check to see if there is a plate or sticker that shows the axle weight capacity. If you have a 5-bolt brake mounting flange I recommend the Dexter Nev-R-Adjust Electric Brake Assembly, part # 23-459 for the right hand and part # 23-458 for the left hand. These are designed to use with 12 inch hubs and drums. I have attached links to a product review video and an initial setup video for these brakes....
    view full answer...
  • Pilot Hole Dimensions of 12 Inch Electric Brake Assemblies And Recommendation With 4 Bolt Mounting
    I went out to our warehouse to measure for you and both the # AKEBRK-7-SA and the # 23-106-09 assemblies have a pilot hole dimension of 3.23 inches. Because you mentioned you have a 4 bolt assembly, that narrows down your axle to an AL-KO axle and you will definitely want the brake assembly # 23-106-09 and # 23-105-09. The other assemblies won't accommodate your 4 bolt mounting pattern. You may also want the mounting bolt # 7-5, lockwasher # 38LW, and nut # 38N. If you don't have an...
    view full answer...
  • Replacement 12 X 2 Hydraulic Brakes Duo-Servo and Uni-Servo, Plus Replacement Bolts and Washers
    We do not sell the wheel cylinder only - you would have to purchase the Dexter # 23-337 hydraulic brake assembly for right hand side or Dexter # 23-336 for left side. For Uni-Servo Free Backing brakes, 7000 pounds, order the Dexter 23-342 for left hand, and 23-343 for right If you want new mounting bolts order the Redline # 7-5 bolts, and for split washers order Redline # 38LW washers.
    view full answer...
  • Brake Assembly Dust Caps and Nut Recommendation for Brake Assemblies 23-105-106
    Sounds like you are looking for the dust cover plugs part # BP10-220 for the brake assemblies # 23-105-106. The bolts these are designed to fit to are actually studs that are attached to the mounting flange of your current spindle like the part # 4-44-1. For nuts and washers that fit that you'd want the part # 38LW and # 38N.
    view full answer...
  • Replacement Electric Brake Assemblies for Denali Trailer with Tandem 5.2K Lippert Axles
    I'm assuming that you're simply replacing the existing brake assemblies and that your trailer has hub/drums that have an inside diameter of 12 inches and a depth of 2 inches. I'm also assuming that your existing brake drums are in good shape, and you're planning on reusing them. If that's the case, I'd recommend the self adjusting electric brake assembly, part # AKEBRK-7R-SA for the right hand side, part # AKEBRK-7L-SA for the left. You'll need two of each. The brake assemblies don't include...
    view full answer...
  • Recommended Brake Assemblies and Hubs with Oil Bath For Dexter 8,000 lb Axles
    For your 8,000 lb axle hubs with oil bath, I recommend the Trailer Hub and Drum Assembly - 8,000-lb Axles - 8 on 6-1/2 - Oil Bath, # 8-285-10UC3-A. The brake assemblies I recommend to match the hubs are the Electric Trailer Brake with Dust Shield - Self-Adjusting - 12-1/4" - Left Hand - 8,000 lbs # AKEBRK-8L and # AKEBRK-8R for the right hand side. You may want the Brake Adjustment Spoon for Drum Brakes # W80630 for the initial adjustment, but these brakes with self-adjust after that. If...
    view full answer...
  • Parts Needed For 7,000 lb Timbren Axle-Less System to Replace Tandem Axles
    We can definitely get you set up with the 7,000 lb Timbren Axle-Less system to replace both your axles, and because the Timbrens come with the left and right side, a quantity of one would replace just one axle. So for tandem axles you will need a quantity of two of the Timbren system: - (Quantity of 2) Timbren Axle-Less Trailer Suspension System - 7K # TASR7KS01 Then for the hub and drum those are sold individually, while the electric brakes are sold in a pair, and you'll also need some...
    view full answer...
  • Recommended Brake Assemblies For Dexter Axle 3500 lb And 5200 lb
    I reached out the the manufacturer and found that they have two possible axles that meet that criteria. One is definitely more likely your application than the other, but I will give you both brake assembly options. For a 3500 lb axle, you will want the Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA. This will give you both the left and right assemblies. There is a sticker to help you with which assembly fits which side....
    view full answer...
  • 6,000 lb Hub and Drum Assembly Compatible with Dexter 12 Electric Brake Assembly
    Yes, the Trailer Hub and Drum Assembly # AKHD-655-6-EZ-K is compatible with the Dexter Electric Brake Assembly # 23-105-09 because it is 12" diameter x 2" wide, as is the brake assembly so they will fit together perfectly. The brake assembly you referenced is just the left hand side and the right hand side is the Dexter Electric Brake Assembly # 23-106-09 or they can be purchased together as part # 23-105-106-09. These brake assemblies will require five of the Brake Mounting Bolt # 7-5...
    view full answer...
  • Can the etrailer.com Brake Assemblies Replace Hayes AL KO Brakes Assemblies
    We have brake assemblies that will work for you, but unfortunately it will not work to replace your existing Hayes/AL-KO brake assemblies with our self-adjusting brake assemblies. For your Hayes axle, you will want to use the 12 Inch Electric Brake Assembly, Left Hand # 23-105-09 and Right Hand # 23-106-09. These brake assemblies are designed to work as replacement assemblies for Hayes/AL-KO axles so they will work well on your trailer. The reason other assemblies will not work for your...
    view full answer...
  • What Kind of Steel is Brake Mounting Bolt 7-5 Made From
    This Brake Mounting Bolt for 12 inch Brakes Assembly, part # 7-5, is not made of stainless steel, it is made of regular steel. You might also be interested in purchasing a Nut for Brake Mounting Bolt for 12 inch Brake Assembly, part # 38N, and a Lockwasher for Brake Mounting Bolt for 12 inch Brake Assembly, part # 38LW.
    view full answer...


< Previous
12



Do you have a question about this Accessories and Part?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Hannah L
Updated by:
Hannah L
Employee Mike S
Updated by:
Mike S

At etrailer.com 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.


<