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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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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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Redline Accessories and Parts - 5-8

  • Trailer Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Redline
  • Hardware
  • Washers
  • 7 Inch
  • 10 Inch


  • 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


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Ask the Experts about this Redline Accessories and Parts

  • 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.
    view full answer...
  • Recommended Replacement Hydraulic Drum Brakes for Tandem Axle Trailer
    Selecting correct hydraulic drum brake assemblies for your tandem axle trailer requires matching brakes to the axle capacity, the size of your hub/drums (please see linked photo) and to the type of brake flange on your spindles. The linked page will show you all hydraulic drum brakes we offer which are suited to axle capacities from 2500 to 15,000-lbs. Usually a 2500-lb axle will have 7 x 1-3/4-inch brakes but if your trailer has 10-inch hubs it could be that the axles are rated higher...
    view full answer...
  • Comparing Different Hydraulic Trailer Brakes for Boat Trailer
    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...
    view full answer...
  • Kodiak Caliper Mounting Brackets Replacement Hardware Size
    The appropriate bolts for use on the Kodiak Replacement Mounting Bracket # KCBM10HRD are bolt # 7-75 which are 20 threads per inch. These are grade 5 bolts that are 7/16" x 1-1/4" long. The corresponding nuts are # 6-17 and the lock washers to use are # 5-8.
    view full answer...
  • Replacement Parts Needed for the Titan Hydraulic Brake Kit # T1878800-700
    We do carry the following parts for the Titan Hydraulic Brake Kit # T1878800-700 that you referenced: Uni-Servo Wheel Cylinder RH - # T0977600 Uni-Servo Wheel Cylinder LH - # T0977700 Adjuster Spring - # 046-083-01 Shoe Return Spring - # BP07-105 As well as the mounting bolt # 7-75, lock washer # 5-8, and nut # 6-17 for the assemblies. If there are any other pieces that need to be replaced then it would be easier just to replace the brake assemblies as a whole. a lot of times this...
    view full answer...
  • Replacement Mounting Bracket and Bolts for Kodiak 3.5K Trailer Disc Brake Kit
    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.
    view full answer...
  • Fit & Compatibility of Timbren Axle-Less Suspension w/4" Lift & Electric Brakes on 1962 Airstream
    It sounds like you might have a 1962 Globe Trotter Airstream Travel Trailer. According to my research this has a dry weight of 2,770lbs and a hitch weight of 400lbs hitch ball height of 19.5 If the 3,500lbs weight capacity will work for your loaded Airtstream, then the Timbren axle-less system # ASR3500S06 could be just what your looking for. Since this hasn't been installed on this trailer before here are the dimensions you will need to check to determine if this system will work...
    view full answer...
  • 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.
    view full answer...
  • Converting Existing Hydraulic Brake System to Electric on Pop-Up Camper
    The Dexter Hub/ Drum you mentioned, part # 8-173-16UC3 would be a proper replacement for you as long as the inner and outer bearings in your existing hubs are # L44649, the grease seal is # 10-9 and the 4-on-4 bolt pattern matches up with your existing hubs. Your existing bearings and grease seals should have reference numbers stamped on them, make sure the numbers on the existing parts match those of the replacements. You will also need electric brake assemblies, part # 23-47 for the...
    view full answer...
  • How to Determine if Dexter Brake Assembly is Manual or Self-Adjusting
    If you have a self-adjusting brake assembly, you'll be able to see the adjuster cable extending across the brake assembly once you remove the hub/drum. However, we sell the Dexter brake kit # K23-463-00, so we can confirm the brakes are not self-adjusting. If you would like to install self-adjusting brakes, you'll have to adjust them once during the initial install, but after that, they will self-adjust. I've included a video demonstrating how to install and adjust a brake assembly...
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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...
    view full answer...
  • 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....
    view full answer...
  • Brake Assemblies for Starcraft AR-One 18QB Travel Trailer with Lippert Components Axle
    Thank you so much for providing your axle details. I spoke to my contact at Lippert and he confirmed that your 3500 lb Lippert spring axle will use standard 10" x 2.25" brake assemblies.So, the Dexter Electric Trailer Brake Kit, # 23-26-27, will work with your Starcraft AR-One 18QB Travel Trailer. The mounting bolts, nuts & adjuster plugs are included with this kit, but you will also need 4 lock washers, # 5-8. A helpful tool to have on hand is the brake adjustment spoon, # W80630,...
    view full answer...
  • Recommended Self Adjusting Brakes for 2014 Keystone Laredo 5W Travel Trailer
    Based on your Dexter brake assembly information, it looks like you've got the Dexter brake kit # K23-463-00 currently on your trailer. To replace your existing brakes with self adjusting brakes I recommend the Dexter Nev-R-Adjust Electric Trailer Brake Kit - 10" - Left and Right Hand Assemblies - 4.4K, Item # K23-478-479. This kit fits 13-inch to 15-inch wheels and includes both the driver's-side and passenger's-side brake assemblies, adjuster plugs, mounting bolts, and nuts. The lockwashers...
    view full answer...
  • 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.
    view full answer...
  • Recommended Hub And Drum for Electric Brakes With 4 On 4 Bolt Pattern For 1973 Scamp Trailer
    The hub we offer that will work with electric brakes and has a 4 on 4 bolt pattern, is part # 8-173-16UC3. You are correct that this hub and drum will only work with 7 inch x 1-1/4 inch brakes. The bearings, races, and seals are included with this assembly. I have attached a product review video for this hub/drum you can check out. The electric brakes that will work with this drum is designed for axles rated up to 2,000 lbs. The brakes have a 4 bolt mounting flange. For the right...
    view full answer...
  • Brake Assembly for Use with Dexter Galvanized Trailer Hub and Drum # 8-247-50UC3
    Since your boat and trailer will be used in salt water a galvanized hub/drum is a good idea to give you some corrosion protection. With this hub you can use Demco Galvanized Free Backing Hydraulic Drum Brake Assembly # 40716 (left) and # 40715 (right). These are suitable for a 3500-lb axle and a 4-on-4-inch brake flange mounting pattern. I have linked an installation video for your reference. Even when using galvanized components, it is a good idea to rinse the trailer with fresh water...
    view full answer...
  • Replacement 10x2-1/4 Inch Electric Trailer Brakes
    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.
    view full answer...
  • Trailer Brakes Recommendations for a 3,500 lbs Boat Trailer Axle
    You have the standard brake mounting flanges on your axle. If you want to get really technical, the bolt holes should actually measure about 1/16 larger than 2-3/4. That is the standard dimension for 3,500 lb axles. If you are looking for hydraulic brake assemblies, I strongly recommend the 10 Inch Free-Backing Dacromet Brake Assemblies, # AKFBBRK-35L-D for the left hand and # AKFBBRK-35R-D for the right hand. Free-backing brakes will not lock up when you are backing up the trailer...
    view full answer...
  • Parts Needed to Install Brakes on a Tandem Trailer with Hayes 3,500 lb Axles
    You are correct, the # 84 spindle parts do interchange to 3,500 lb Hayes axles, as long as it is not a boat trailer axle, so you can use the Dexter parts on these axles. The spindle and hub parts for this application are standard parts that are still used in production, so they should be around for a long time to come. Of course keeping a record of the parts you use will help with replacement in the future. You could always return to Hayes parts in the future, the only thing to keep...
    view full answer...
  • Adding Electric Brakes to a Trailer with Inner and Outer Bearing L44649 and 13 Inch Wheels
    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...
    view full answer...
  • Parts Needed to Add Electric Trailer Brakes to Pop-Up Camper
    The Dexter 8-91 hub would have a 4 lug on 4 inch bolt circle and would use L44649 bearings, so I'd recommend checking to see if your existing bearings have the same reference number. I've linked you to an FAQ article that shows exactly what you'll need to add electric brakes to your pop-up camper. Your existing axle would need to have brake mounting flanges mounted on each end behind where the hub would sit. The flanges provide a spot for the brake assemblies to bolt in place. If you...
    view full answer...
  • Troubleshooting Grinding Noise from Trailer Wheel Around Corners on a Tandem Axle Trailer
    Sounds like the trailer manufacturer is right and the noise is coming from the hubs or bearings. You are also correct in the determining the correct replacement hub drum part # AKHD-545-35-EZ-K and the correct brake assemblies part # AKEBRK-35L-SA for the left hand side and the part # AKEBRK-35R-SA for the right hand side. The correct nuts would be part # 6-17 and the correct lock washers would be part # 5-8.
    view full answer...
  • Electric Brake Install 2000 Coleman Sedona
    Let's begin with the brake assemblies. You'll need the Dexter # 23-48 for the right side of the trailer, # 23-47 for the left. The brake assemblies have the mounting bolts integrated into the backing plate, but the necessary nuts and lock washers aren't included. We sell the nuts individually as part # 6-17 and the lock washer as part # 5-8. You'll need four of each per brake assembly. Dexter doesn't include the adjuster hole plugs with the assemblies, those are sold separately as part...
    view full answer...
  • Parts Needed to Add Electric Brakes to Triple Crown ATV Trailer w/ 3500 lb Axle
    Actually, we have an FAQ article that specifically addresses this. You can see the article by clicking the provided link. You'll need to choose a hub/drum that uses the same inner and outer bearing as your existing idler hub, and the hub/drum would need to have the same bolt pattern as you existing hub so you can use the same wheels and the hub you choose would need to be compatible with your existing wheel diameter. Your axle will need to have the brake mounting flange to provide an...
    view full answer...
  • Recommended Electric Trailer Brakes for 1900-lb Lippert Axle with 4-Bolt Brake Flanges
    We can help you select suitable electric brake assemblies to match your trailer. The features you need to match up are the axle capacity, brake flange type and the width and diameter of your existing hub/drum assemblies. You also need to be sure to choose both left- and right-handed brakes. The linked article on electric drum brakes will be helpful. Electric brakes for a 2000-lb-rated axle are 7-inch diameter with either a 1-1/4-inch or 1-3/4-inch drum width. All brakes shown on the...
    view full answer...

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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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