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CE Smith U-Bolt - Zinc-Plated Steel - 4" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1

CE Smith U-Bolt - Zinc-Plated Steel - 4" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1

Item # CE15253A
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CE Smith U-Bolts Boat Trailer Parts - CE15253A
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Multipurpose U-bolt intended for use on trailers to help secure brackets, mounts and cargo. It is constructed of sturdy, zinc-plated steel, and it comes with mounting hardware. Call 800-298-8924 to order CE Smith boat trailer parts part number CE15253A or order online at etrailer.com. Free expert support on all CE Smith products. Guaranteed Lowest Price and Fastest Shipping for CE Smith U-Bolt - Zinc-Plated Steel - 4" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1. Boat Trailer Parts reviews from real customers.
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  • Reviews (14)
  • Q & A (3)
  • Videos (1)
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CE Smith Boat Trailer Parts - CE15253A

  • Roller and Bunk Parts
  • U-Bolts
  • 4 Inch Long
  • CE Smith
  • Zinc-Plated Steel
  • 3-1/8 Inch Wide
  • 7/16 Inch Diameter

Multipurpose U-bolt intended for use on trailers to help secure brackets, mounts and cargo. It is constructed of sturdy, zinc-plated steel, and it comes with mounting hardware.


  • Heavy-duty U-bolt helps to secure a bracket to your trailer's frame
  • Zinc-plated steel construction is sturdy and resists corrosion
  • Includes mounting hardware
  • Made in the USA


  • Quantity: 1 U-bolt
  • Dimensions: 4" long x 3-1/8" wide x 7/16" diameter
  • Threads per inch: 14

15253A Zinc-Plated Steel Replacement U-Bolt by CE Smith - 4" Long x 3-1/8" Wide x 7/16" Diameter

Video of CE Smith U-Bolt - Zinc-Plated Steel - 4" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1

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

Video Transcript for Yates Boat Trailer Keel Roller and CE Smith Bracket Installation

Today on our Jon boat trailer, we are going to be installing the C.E. Smith bracket for boat trailer rollers out of galvanized steel, part number CE10301G. In addition to the bracket, we are also going to be installing a Yates Keel roller for boat trailers, part number YR5244-105EC. Here is the bracket that we are going to be installing here on our boat trailer. We are going to be installing it here on this cross member and on our particular trailer, there is already actually a couple of holes already drilled in the trailer that line up with these adjustment slots here. It does have the 5/8" hole drilled in the upper part of the bracket that allows for a roller such as one like this. Slide it into place and you will need to supply your own hardware to attach the bracket to your boat trailer, as well as to attach the roller to the bracket. I will go ahead and pick our bracket here. Go ahead and line it up.

On the back side here we are going to put a washer and a nut. Go ahead and do that for the other hole as well so we can kind of keep the bracket up. Next, we are going to need to install the roller here. To install the roller to our bracket, we are going to be using a 5/8" bolt, couple of 5/8" flat washers, 5/8" lock washer and a 5/8" hex nut. Go ahead and put a washer on the bolt first and then go ahead and get our roller into the bracket. Now that we have our roller lined up, we will go ahead and slide our bolt through the bracket and the roller. We will then put another flat washer, slide our lock washer and finally the hex nut into place.

Go ahead and tighten down the roller and make sure that it is still able to be moved. Go ahead and slide it up so we are touching the bottom of the boat. Now that we have the bracket and the roller in the proper position, we will go ahead and tighten everything down. This right here is just one example of how you can use this panel bracket from C.E. Smith. Depending on your exact application, you may need to use more of a U-bolt style to attach it to your trailer. C.E.

Smith does sell these and that is part number CE15252A for a three inch long version, or for a four inch long U-bolt, it is part number CE15253A. Depending on your trailer will depend on exactly how you mount it. With that, that will conclude our installation of the C.E. Smith panel bracket for boat trailer rollers made out of galvanized steel, part number CE10301G on our Jon boat trailer.

Customer Reviews

CE Smith U-Bolt - Zinc-Plated Steel - 4" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1 - CE15253A

Average Customer Rating:  4.9 out of 5 stars   (14 Customer Reviews)

Multipurpose U-bolt intended for use on trailers to help secure brackets, mounts and cargo. It is constructed of sturdy, zinc-plated steel, and it comes with mounting hardware.

- CE15253A

Very helpful and at a great price 855541

- CE15253A

Good quality 581703

- CE15253A

perfect fro my kayak trailer build, will post pics after the project is complete. 498061

- CE15253A

I was having a hard time finding leaf spring u bolts for a boat trailer until I found the etrailer.com website. Reasonable prices and fast shipping. Thank you etrailer.com! 387293

- CE15253A

Good hardware, straight forward installation, no problems for the last year... 350778

Thank you for your interest… The parts I purchased are still in good service. I shall shop there again….
Greg - 03/11/2018


- CE15253A

Great product great prices best shipping need I say more 314903

- CE15253A

U-bolts perform as specified. Not a single problem with them. No rust on them whatsoever since I installed them a year ago. 254267

Still rust-free and doing the job!
Dan S - 05/31/2017


- CE15253A

Everything trailer was able to supply the hard to find part I needed at a reasonable cost. 252454

- CE15253A

Good product fast shipping great company 153109

- CE15253A

Upgraded shipping. I liked that! 151359

- CE15253A

Very good quality 123402

- CE15253A

I have not gotten a chance to install items however out of the package the items all look great! I decided to go with stainless U bolts instead of the Zinc coated ones and ordered them the next day and they were delivered promptly. I had to return the Zinc ones which was so easy with one phone call and a RA# via email. Very impressed how easy it was. Definitely order from etrailer, the prices are great and the service is fantastic!!!! 121414

So far so good. On install the nylon lock nuts locked up and were hard to remove. Would have preferred regular nits with metal split washers to lock them. Also wish the bolts were 1/2 instead of 3/8
Bri - 03/20/2015


- CE15253A

very good i like allot 104891

- CE15253A

Does the job. Good quality. 98691


Ask the Experts about this CE Smith Boat Trailer Parts

  • Recommended U-Bolt to Fasten Bolster Bracket to 3 x 2 Inch Boat Trailer Frame
    Since you've got a boat trailer, you'll want to use something that offers a good level of corrosion resistance. We have two different u-bolts that would work for you, one that's zinc plated # CE15252A and one that's stainless steel, part # CE15253A. If you're in a freshwater environment, the zinc plated u-bolt would work fine, but if you're using your boat in saltwater, you might consider the stainless option.
    view full answer...
  • Bunk Board Swivel Brackets and U-Bolts for Boat Trailer with 3-Inch Frame
    The longest bunk board swivel brackets we offer are the 13-inch CE Smith # CE10002G. You can use the CE Smith u-bolt # CE15253A which comes with washers and lock nuts; this u-bolt measures 7/16-inch diameter (which will fit the 1/2-inch slots of the above bracket) x 4-inches in length x 3-1/8-inches wide.
    view full answer...
  • Can A Square U-Bolt Be Used with the Fulton Round Snap-Ring Swivel Marine
    In regards to the Fulton Round Snap-Ring Swivel Marine Jack part # FTJ12000101, the action of the swivel will not be impeded by a set of bolts extending out past the mounting hole towards the jack tube. I went out to our warehouse and tested this for you. I would just trim them back with an angle grinder but they won't interfere with the operation of it. The CE Smith U-Bolt part # CE15253A that you referenced does have the correct width of 3-1/8" but the bolt diameter of 7/16" is too...
    view full answer...

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Info for this part was:

Video Edited:
Joshua S
Written by:
David L
Updated by:
Sarah W

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