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Lock Washer for Brake Mounting Bolt for 7" and 10" Brake Assemblies

Lock Washer for Brake Mounting Bolt for 7" and 10" Brake Assemblies

Item # 5-8

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Redline Accessories and Parts - 5-8
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  • Trailer Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Hardware
  • Redline
  • Washers
  • 7 Inch
  • 10 Inch
Call 800-298-8924 to order Redline accessories and parts part number 5-8 or order online at etrailer.com. Free expert support on all Redline products. Guaranteed Lowest Price and Fastest Shipping for Lock Washer for Brake Mounting Bolt for 7" and 10" Brake Assemblies. Accessories and Parts reviews from real customers.


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  • Reviews (85)
  • Q & A (43)
  • Videos (1)
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  • Why etrailer?

Redline Accessories and Parts - 5-8


  • Lock washer fits 7/16" mounting bolts for 7" and 10" brake assemblies
  • Quantity: 1 lock washer


5-8 Lockwasher for Brake Mounting Bolt for 7" and 10" Brake Assemblies







Video of Lock Washer for Brake Mounting Bolt for 7" and 10" 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 5-8 Review

Today we're going to review part number 5-8. This is the lock washer for the 7/16 size brake mounting bolt for 7 inch and 10 inch brake assemblies. This part is made to work with the other parts that we sell separately. This is the 7/16 size brake mounting bolt which is part number 7-75. It is sold separately. It is listed on this product page as a related product.

The lock washer is made to go on there, and also the other piece that we sell separately, it's made to go with is the mounting nut for the brake assembly for 7 and 10 inch brake assemblies. It's part number 6-17 and that's made to screw on to the . and all 3 of those pieces again are sold separately. That should do it for part number 5-8. This is the lock washer for the 7/16 size brake mounting bolt for 7 inch and 10 inch brake assemblies..


Customer Reviews

Lock Washer for Brake Mounting Bolt for 7" and 10" Brake Assemblies - 5-8

Average Customer Rating:  5.0 out of 5 stars   (85 Customer Reviews)


- 5-8
by:

The washers I needed, got delivered super quick right along with brakes. 607728



- 5-8
by:

Great replacement 503606



- 5-8
by:

Great product 462001



- 5-8
by:

good parts 422366



- 5-8
by:

All parts are doing well. There have been no issues with anything. 408760



- 5-8
by:

The best customer service! 407711



- 5-8
by:

Quality part. Does what it should 405034



- 5-8
by:

good price and fast shipping 397510



- 5-8
by:

Worked as described 385500



- 5-8
by:

It's a lock washer, not a whole lot to say. It works 384274



- 5-8
by:

Simply the best. Best price, best quality and easy to install. Also there are great videos etrailer has for installation of most of their parts. Dont waste your time shopping around. These gutd have the best price. Thanks guys 381075



- 5-8
by:

Everything works well. I will definitely order form etrailer again when I need stuff. 379547



- 5-8
by:

No problems with installation. Everything working perfectly fine. Good purchase. 357646



- 5-8
by:

great piece 348604



- 5-8
by:

Works great 346455


Comments

All these products have worked great.I really like that the breaks are self adjusting.You will be the first place I look when I need trailer parts

Mike S - 02/27/2018

35226

- 5-8
by:

Great product and video 331449



- 5-8
by:

Thx 323938



- 5-8
by:

Perfect fit. 321981



- 5-8
by:

Hydraulic trailer drum brakes. Received within a few days. Easy to install, not that complicated. Needed a second person to help bleed the brakes. 312588



- 5-8
by:

Great products, great prices and great service. what more can I say? 297006



- 5-8
by:

Parts work great, service and tech support was excellent. 291553



- 5-8
by:

Product worked as advertised. 288863



- 5-8
by:

I purchased electric brake parts for a tow dolly. The staff at etrailer guided me thru the selection process and offered a perfect solution. It is nice to have a company like etrailer and their staff of true professionals. Everything had been absolutely perfect one year after install and expect many more years of service from these components. Thanks etrailer. 287390



- 5-8
by:

Pretty hard to screw this up other than it should have came with the brake assembly. 269895



- 5-8
by:

Top notch hardware for electric brake backing plate 268627



- 5-8
by:

super service 263056



- 5-8
by:

good product 250956



- 5-8
by:

Good product 246984



- 5-8
by:

Great product and great service 244075



- 5-8
by:

Trailer brakes, drums and bearings. Everything at a great price and perfect fit. Very happy 243302



- 5-8
by:

Good quality part 234385



- 5-8
by:

Perfect 227664



- 5-8
by:

Hardware was correct and they worked fine for my brake assemblies. 225104


Comments

Its holding well

Tom a - 09/13/2016

20928

- 5-8
by:

It's a washer 224466



- 5-8
by:

Standard lock washers. 222605



- 5-8
by:

It's a nice lock washer. Fits as it sho uld. 219106



- 5-8
by:

Converted non brake single axle trailer to electric brakes. Etrailer had all the parts needed, great price and fast ship. Put together in a couple hours and seems to work fine. 218620



- 5-8
by:

Good quality . 217843



- 5-8
by:

Received shipment a day early everything in order. Good phone service and assistance. 216162



- 5-8
by:

It's a lock washer. What more can be s aid? 212544


Comments

Wow reaching out after an entire year is amazing. Products are allperforming to expectations.

Paul I - 08/05/2016

19979

- 5-8
by:

great product ~ quick delivery 208992



- 5-8
by:

Using old lock washers is just BAD. They loose their tension. Always replace with new. 202829



- 5-8
by:

Excellent quality. Exact replacement part. Thanks. 194700



- 5-8
by:

Courtney was very helpful to make sure I ordered the right parts for my trailer. Delivery was FREE and arrived within 2 days, which was great!!! 193474



- 5-8
by:

Good quality part. 192540



- 5-8
by:

Am very happy with everything I ordered, fit was perfect. Didn't have to file holes to make fit , ( like others I've gotten ) . 189247



- 5-8
by:

One of the brake assemblies came short two mounting bolts. Installing them tomorrow. 187122



- 5-8
by:

its a lock washer , 186765



- 5-8
by:

Thank you 175744



- 5-8
by:

Great customer service and product 175140


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Ask the Experts about this Redline Accessories and Parts
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  • Essentially yes, all of them will work for your trailer assuming you have 3,500 pound axles and a 4 bolt mounting flange. However, there are some differences between the brake assemblies you mentioned. The # AKFBBRK-35 are free-backing brakes, meaning they will not engage when reversing with your trailer. If your trailer has a reverse lockout on it then this feature is not necessary. They're coated with an e-coat used for corrosion resistance. The Demco brakes # 40716-15 are galvanized...
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  • The mounting bracket for the 3.5K Kodiak disc brake kits is # KCMB10HRD. For the bolts to mount the bracket to the brake mounting flange use 4 of # 7-75 per bracket. the matching nut is # 6-17 and the lock washer is # 5-8.
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  • Does the Demco Hydraulic Drum Brake Assembly Come With the Drum?
  • I do have a solution for you but the answer to your question is no, the Demco Hydraulic Drum 3,500 lbs - 10" Brake Assembly # DMSB24429M is just the brake assembly without the drum. Keep in mind that when selecting a brake assembly and hubs that you make sure they will have the same weight capacity that your axle has. You will want to make sure that whichever brake assembly you choose that you get the Right Hand side as well, in this case it would be the Hydraulic Drum Brake part # DMSB24428M. I...
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  • The mounting studs on trailer brake assembly # K23-478-00 are 7/16 inch requiring the 7/16 inch nut # 6-17. You would also want to use lock washer # 5-8. This is a standard size for 10x2-1/4 inch brakes. The outer diameter of the nuts is larger of course so it is not surprising that the wrench you used was larger.
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  • Is Mounting Hardware Included with Dexter Nev-R-Adjust Electric Trailer Brake Kit # K23-478-479
  • The Dexter Nev-R-Adjust Electric Trailer Brake Kit # K23-478-479 comes with 8 nuts and 4 adjuster access plugs. The studs are already attached to the brake assemblies so those are included by default. Lock washers are not provided but you can add them using # 5-8 which is sold in quantities of 1.
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  • Correct Size Nuts and Washers for Electric Brake 23-26 Assembly
  • The 10 inch Electric Brake Assembly, # 23-26, requires a 7/16 inch, fine thread bolt for installation. Use part # 6-17 for installation. The lock washer is also 7/16 inch. Part # 5-8 is the correct washer for this application.
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  • Adding Electric Drum Brakes to a Scamp Camper Trailer
  • Setting up a trailer with electric drum brakes is going to be the easier and most cost effective way of adding brakes to your Scamp trailer. Since the trailer already has the mounting flanges that will limit the amount of parts and work that will need to be done. Starting with the hub and drum assemblies since your bearings are both L44649 and you have an EZ Lube style axle you would need # 8-257-5UC3-EZ with the 5 on 4-1/2 bolt pattern. They are designed for 2,000 pound axles but will...
    view full answer...

  • Replacement Hub/ Drums, Brake Assemblies and Tires for 2003 Trail-Lite Travel Trailer
  • The Hub and Drum assembly you referenced, part # 84546UC3 has the same casting number on it, so it is most likely the correct replacement for you. I would recommend looking at your existing bearings to confirm a match. If the existing bearings you have are # L68149 inner and # L44649 outer, these are the correct replacements. For electric brake assemblies, use # 23-26 for the left side, and # 23-27 for the right. The mounting nuts, # 6-17 and lock washers, # 5-8 are not included....
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  • Parts Needed to Install Electric Trailer Brakes on a Pop-Up Camper
  • You have compatible hub and brake assemblies selected. The brake assemblies, # 23-48 right hand, and # 23-47 left hand, will mount to a 4 bolt flange that has bolt holes 2-7/8 inches apart on center. You will need to make sure your existing bearings and seal match the bearings and seal in the hub and drum you selected, # 8-257-5UC3-EZ, and that the wheel bolt pattern, 5 on 4-1/2 inches, matches also. The trailer hub and drum # 8-257-5UC3-EZ is designed for use on an EZ lube axle with grease...
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  • Parts Needed to Add Electric Brakes to a Utility Trailer with a 3500 Lbs Axle and Brake Flanges
  • You will need several items to add electric brakes to your Carry-On Utility trailer. Starting with the trailer you will need a hub and drum that matches the bearings and seal on your trailer spindle and your wheel bolt pattern. The only way to be sure is to check the bearing part numbers and seal part number, but with a 3,500 lbs Dexter axle that has brake mounting flanges you will most likely have the # L44649 Outer and # L68149 inner bearings and # 58846 seal. If these are the correct...
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  • Converting Existing Hydraulic Brake System to Electric on Pop-Up Camper
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  • Where To Measure to Determine What Size Brake Assemblies are Needed
  • In order to determine what size brakes you need you will need to measure what you currently have on your trailer. Check out the picture I attached that shows you exactly where to measure. If you are instead looking for a way to add brakes to your trailer that currently does not have any check out the help article I attached that covers this.
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  • Converting 3500 lb Axle from Idler Hubs to Electric Brakes
  • The brake mounting flanges, whether they be 4 or 5 bolt, have a standard hole spacing to fit their appropriate brake assembly. No worries about the brake assembly matching with the existing one on your axle. A 3500 lb axle like what you have will use a 4 bolt flange. You will need to get the numbers that are stamped on your existing bearings, in order to confirm the fit of the # 84557UC3. Your current bearings will need to match the bearings of the replacement hub. The # 84557UC3 uses...
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  • Electric Brake Install 2000 Coleman Sedona
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  • To start, the trailer is going to need hub and drum assemblies. Based on the bearing numbers there are several options available. If your 13 inch wheels have 4 bolt holes then you would need 2 of assembly # 8-173-16UC3. If the wheels have 5 bolt holes then you would need 2 of assembly # 8-257-5UC3. For electric brakes for either of these assemblies you would need # 23-48 for the right side and # 23-47 for the left side. You will also need 8 of nut # 6-17 and 8 of lock washer # 5-8. And...
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  • Fit & Compatibility of Timbren Axle-Less Suspension w/4" Lift & Electric Brakes on 1962 Airstream
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  • Troubleshooting Grinding Noise from Trailer Wheel Around Corners on a Tandem Axle Trailer
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  • For the Timbren Axle-Less Trailer Suspension System with 4 inch lift and electric brake hubs, you can use 4 Inch Lift Spindles, # ASR3500S06, Trailer Hub and Drum Assembly, # 84546UC3 x 2, 10" Etrailer.com Self-Adjusting Brake Assembly, # AKEBRK-35L-SA for left hand side and # AKEBRK-35R-SA for right hand side, Mounting Nuts, # 6-17 x 8, Lockwasher, # 5-8 x 8, and Adjuster Plugs, # BP10-220. A complete kit is not available at this time. As for using your existing brakes and hubs from...
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  • Titan Brake Assembly Free Back or Universal Difference and Installation, Hardware and Flanges
  • The difference between the Titan Galphorite Uni-Servo Hydraulic Trailer Brake Assembly part # T4445300, and the Titan Galphorite Free-Backing Hydraulic Trailer Brake Assembly part # T4423500, is that that part # T4423500 is a Free-Backing brake assembly. It will not apply brake pressure when the trailer is in reverse. So which brake assembly to choose is your choice on whether you want to have brakes on the trailer while in reverse, the part # T4445400, will allow you to have brakes in...
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Info for this part was:

Video Edited:
Zack K
Installed by:
Jeff D
Expert Research:
Jameson C
Updated by:
Sarah W

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