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

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

Item # CE15252A
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CE15252A - 3-1/8 Inch Wide CE Smith Roller and Bunk Parts
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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. 1-800-940-8924 to order CE Smith boat trailer parts part number CE15252A or order online at Free expert support on all CE Smith products. Great prices and Fastest Shipping for CE Smith U-Bolt - Zinc-Plated Steel - 3" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1. Boat Trailer Parts reviews from real customers.
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CE Smith Boat Trailer Parts - CE15252A

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

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: 3" long x 3-1/8" wide x 7/16" diameter
  • Threads per inch: 14

15252A Zinc-Plated Steel Replacement U-Bolt by CE Smith - 3" Long x 3-1/8" Wide x 7/16" Diameter

Video of CE Smith U-Bolt - Zinc-Plated Steel - 3" 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 Satisfaction Score:

Customer Reviews

CE Smith U-Bolt - Zinc-Plated Steel - 3" Long x 3-1/8" Wide x 7/16" Diameter - Qty 1 - CE15252A

Average Customer Rating:  4.9 out of 5 stars   (32 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.


Customer support was great, a live person who happily spent some time on the phone. I ended up not using them for my car roof rack that holds my outrigger canoe. I ended up using some traditional u bolts which fit a bit better. I had to compare them on the rack to decide. While they were fairly expensive, [for] the bolts with shipping. It would have been worth it if they had fit better than the u-bolts. I did not return them and will probably find a use for them on some other project. Quality of the bolts seemed good.


Haven't installed the items yet, but they seem of good quality & are exactly what I need & what I expected. Shipping was quite fast & communication excellent! Should the need arise, I'll do business with etrailer again.

No problems encountered in a years time
Jim F - 03/10/2016


Exactly what I ordered,exactly what I n eeded


Recently purchased U-bolt from e-trailer. Small item, no big purchase- just more of the same great service from e-trailer. Called to verify dimension not listed, placed order over the phone, received product way ahead of estimated arrival. When I am looking for trailer products I always go to e-trailer first. Always a perfect fit.


U bolts fit perfect with the 10 in Brackets I used for my bunks. price of the material was very very reasonable and I got it in a reasonable short time very good quality I'll always use etrailer for my trailer parts


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

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


Excellent Products and E Trailer provides outstanding service and stands behind their products. Prompt shipping, support, and responses.


Not an easy part to find on the web. Very happy with etrailer's vast inventory and product quality. Delivery was quick. Would certainly order from again.


Everything was exactly right! Very fast shipping! Couldn't be more happier with etrailer! Will definitely do business with you again. And will tell my boating friends. Thank you very much and keep up the good work!


Wow! I have Macular Degeneration and clicked the wrong button on part of my order. I contacted customer support after its arrival and explained what I had done and they helped me to get the right parts as well as return the wrong parts. THANKS>


Everything was to size and the order was shipped and received on time. I would like to see this offered in a hot dipped galvanized however. This is for a boat trailer and the extra protection would be helpful. CSR was helpful and knowledgeable.


As always etrailer had what I needed. I shopped around and no other outlet had exactly what I wanted. Their website is easy to navigate and makes finding the right part a breeze.


all products great. just wish they were hot dipped galvanized. very fast shipping.


Great for 1.5 “x 3” Trailer cross membe rs


Received order very quickly and very high quality. Thanks etrailer


These bolts make installation a breeze! Great weight and quality.


nice part
heavy duty


Good quality component. Worked good.


Loved the product. Would order agai n.



Received more than expected. Plates were not expected.


Every thing I ordered was what I wanted, Thank You


Exactly as ordered. Perfect!


as described


Show More Reviews

See what our Experts say about this CE Smith Boat Trailer Parts

  • Dimensions of CE Smith U-Bolt Threads # CE15252A
    I went out to the warehouse and pulled a CE Smith U-Bolt, part # CE15252A and took some measurements for you. The threaded portion is 2-1/16". The outside width is 4". The outside length is 3-1/8". Check out the photo of the U-Bolt along with the dimensions I made for you at right.
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  • Recommended U-Bolt for 3 Inch Wide x 1-1/2 Tall Trailer Frame
    For a u-bolt that will fit a 3" wide x 1-1/2" tall trailer frame you can use the CE Smith U-Bolt part # CE15252A which is 3" long x 3-1/8" wide x 7/16" diameter. Please note, the u-bolt width must be wider than the width of your frame in order to attach, otherwise it would not work which is why you need the 3-1/8" width listed above. The 3" length is the shortest we offer for the above width.
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  • Length of the Threads on the CE Smith U-Bolt Part # CE15252A
    I went out to our warehouse and measured the CE Smith U-Bolt part # CE15252A for you. The threads on the u-bolt are 2" long as shown in the attached photo.
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  • How Does the CE Pyramid Washer # CE10806 Fit Against a U-Bolt Nut
    After speaking with my contact at CE Smith, I found the CE Smith Pyramid Washer # CE10806 fits against the nut high side up. To demonstrate how this would work, I have included a video that should be helpful. This washer works best with the CE Smith U-Bolt # CE15252A, a multi-purpose U-bolt intended for use on trailer to help secure brackets, mounts, and cargo. It is constructed of sturdy, zinc-plated steel, and it comes with mounting hardware.
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  • Need 3 Inch Center-Detented U-Bolts for Older Cargo Box
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  • Will the Fulton F2 Trailer Jack # F1413020134 Work with a 2 Inch x 3 Inch Frame
    You can install the Fulton F2 Jack, # F1413020134, on your trailer, but you will need to pick up smaller u-bolts. The u-bolts included with this jack fit 3 inch x 3 inch and 3 inch x 4 inch frames. You could pick up two of the CE Smith U-Bolts, # CE15252A. These u-bolts are 3 inches long x 3-1/8 inches wide. I tested it with the Fulton F2 Jack, # F1413020134, and they fit. The shorter length and longer threads should work well with your 2 inch wide frame.
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  • Three Inch Long U-Bolts to Use with CE Smith Bolster and Swivel Bracket Assembly for Boat Trailers
    CE Smith u-bolt # CE15254A is 3 inches long by 4-1/8 inches wide with 7/16 inch diameter. It also includes matching washers and nuts. This u-bolt is sold in quantities of 1. We also have CE Smith u-bolt # CE15252A. It is also 3 inches long but more narrow at 3-1/8 inches wide, and also has a 7/16 inch diameter. It does include washers and nuts and is sold in quantities of 1. These u-bolts are zinc-plated for corrosion resistance.
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  • 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.
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    The UWS Truck Bed Tool Chest # UWS01044 does require you to drill and use your own hardware to secure it in your truck bed. The choice of hardware is up to you; you could use screws, nuts and bolts or even u-bolts like # CE15252A if you prefer. Your spray-on liner will not be an issue for installation. Dimensions are shown in the linked diagram. This USA-made tool chest features 8 cubic feet of internal volume and its corrosion-resistant aluminum construction and foam-reinforced lid mean...
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    The Dutton-Lainson Boat Trailer Deluxe Roller Bunk - 5' Long Sections # DL21741 are a great option to make loading and launching your boat easier. You will want to remove the bunk boards for the installation or at the very least add some spacers ad the wheels are taller on the top and bottom of the bunk boards so installing them directly on the bunks would need the wheels from rotating. Most installations use the Boat Trailer Roller Bunk Bracket for Dutton-Lainson Roller Bunks # DL21742...
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Info for this part was:

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Video Edited:
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Employee David L
Written by:
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Employee Wilson B
Updated by:
Wilson B

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