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  1. Boat Trailer Parts
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  3. U-Bolts
  4. 1/2 Inch Diameter
  5. 3-13/16 Inch Long
  6. Galvanized Steel
CE Smith U-Bolts - Galvanized - 3-13/16" Long x 3-1/16" Wide x 1/2" Diameter - Qty 2

CE Smith U-Bolts - Galvanized - 3-13/16" Long x 3-1/16" Wide x 1/2" Diameter - Qty 2

Item # CE15283GA-2
Our Price: $29.19
Boat Trailer Parts
Shipping Weight: 1.26 lbs
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These sturdy square U-bolts let you secure 1 double U-bolt bolster bracket or 2 standard bolster or bunk board brackets to your boat trailer's frame. Galvanized steel is durable and corrosion resistant. Hardware included. 1-800-940-8924 to order CE Smith boat trailer parts part number CE15283GA-2 or order online at etrailer.com. Free expert support on all CE Smith products. Great prices and Fastest Shipping for CE Smith U-Bolts - Galvanized - 3-13/16" Long x 3-1/16" Wide x 1/2" Diameter - Qty 2. Boat Trailer Parts reviews from real customers.
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  • Reviews (90)
  • Q & A (0)
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CE Smith Boat Trailer Parts - CE15283GA-2

  • U-Bolts
  • 1/2 Inch Diameter
  • 3-13/16 Inch Long
  • Galvanized Steel
  • 3-1/16 Inch Wide
  • CE Smith

These sturdy square U-bolts let you secure 1 double U-bolt bolster bracket or 2 standard bolster or bunk board brackets to your boat trailer's frame. Galvanized steel is durable and corrosion resistant. Hardware included.


Features:

  • Pair of heavy-duty square U-bolts let you secure a bracket or brackets on your boat trailer
    • Works with 1 double U-bolt bolster bracket or 2 standard bolster or bunk board brackets
    • Designed for use with brackets that have 1/2" diameter mounting holes or 1/2" wide mounting slots
  • Galvanized steel resists rust and corrosion
    • Suitable for saltwater exposure
  • Includes mounting hardware
  • Made in the USA


Specs:

  • Quantity: 2 U-bolts
  • Inner width: 3-1/16"
  • Length: 3-13/16"
  • Bolt size: 1/2"-13
  • Thread length: 1-1/2"
  • Overall length: 4-5/16"


dimensions

Galvanized Steel

Galvanized steel parts are hot-dipped in zinc after being stamped. This creates a coating that is typically 3 mil to 5 mil thick. This thick, all-around coating allows galvanized steel products to provide years of use without rusting or corroding.



15283GA C. E. Smith Galvanized Square U-Bolts for Boat Trailer Brackets - Pair




California residents: click here


Customer Satisfaction Score:


Customer Reviews

CE Smith U-Bolts - Galvanized - 3-13/16" Long x 3-1/16" Wide x 1/2" Diameter - Qty 2 - CE15283GA-2

Average Customer Rating:  4.9 out of 5 stars   (90 Customer Reviews)

These sturdy square U-bolts let you secure 1 double U-bolt bolster bracket or 2 standard bolster or bunk board brackets to your boat trailer's frame. Galvanized steel is durable and corrosion resistant. Hardware included.

by:

Perfect and well made for holding down roller bunks.



by:

U bolts are a little long but with a couple washers it worked fine.



by:

U-bolts holdings up well after a year. Just check free time to time their tightness. Very Good Product.

Jerry K.

11/6/2023

Still hanging in there. No issues.



by:

Galvanizing was a bit heavy. Made it hard to get nuts on



by:

Just what I ordered quick and easy



by:

I'm not a trailer person but I found "etrailer's" website informative enough to know what I needed. I also had the benefit of an etrailer staff member who knew his products and thus able to make sure I bought the correct pieces. The plus was when the items arrived much sooner than the shipping time they quoted. I have not yet installed the items but hope to do it this week. Excellent source to buy quality trailer parts.

Anthony

8/24/2022

Fine - still in one piece



by:

Photo of items in use on boat trailer.



by:

it fits perfect but be sure you do all the measurements on your trailer You will get exactly what you need for best price at highest quality & no need to shop anywhere else. Just do your homework before ordering



by:

After about a year of saltwater and freshwater use on my boat trailer, They are still doing fine.



by:

Easy ordering, delivered as promised. Quality merchandise. I'll be ordering more from etrailer!



by:

etrailer.com had everything I needed to replace critical parts for my 34ft. cruiser boat trailer. Reasonable prices and Wow SUPER FAST shipping!! I ordered YATES keel pads, keel rollers, bow rollers, roller end caps, pal nuts, and galvanized square U-bolts. All items were well packaged in one box. It's my second order from etrailer.com, very easy to navigate their inventory. One stop shopping. Absolutely will buy form etrailer again.



by:

The length could have been 1/4" longer. Could not get the lock washers on used blue Loctite threadlocker.

Etrailer Expert

Jenny N.

11/5/2021

Thank you for your feedback. We do have a longer u bolt part # CE15274A which is 4-14 Long x 3-18 Wide x 12 Diameter.



by:

All of the trailer brackets are good quality. The brackets seem to be priced fair but the U-Bolts are very expensive (double what I would have expected to pay)



by:

Excellent product; quick service as promised; kind of pricey but even so seems to be competitive. Would have given 5 stars but haven't used the trailer yet. I'll keep this company.



by:

Fit my project requirements for my boat trailer rebuild needs.



by:

Great products just wish the shipping end would of kept the box in better condition. Appreciate all the customer service I’ve received and will be using the company soon for another trailer!



by:

Used these on my Magic Tilt boat trailer.. Excellent fit



by:

Excellent product, exactly what I was looking for. Thank you for sending it so quickly. Will definitely do more business with etrailer.com



by:

Everything I order was excellant .
Order
was delivered quickly and everything was there.
No problems with any of the boat trailer items I purchased



by:

Great product and has worked very well on my trailer.



by:

Package arrived in good shape and bolts were sized as advertised. Galvanizing is good on nuts, bolts and washers.



by:

Excellent product - heavily galvanized. Plenty sturdy.



by:

High quality parts and made in the USA



by:

Keith K.

10/27/2023

My old u bolts were rusty beyond reuse, the new bolts fit great and worked great with the new bunk brackets I got as well.



by:

Original order was missing some parts, but they quickly sent them after I notified them. Would happily continue to do business with them


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Show More Reviews

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

  • Which Replacement Bunk Brackets For Boat Trailer
    If you are wanting to use vertical bunk brackets like the CE Smith Heavy Duty, Vertical Bunk Brackets - 90 Degree - Galvanized Steel - 6" Tall - Qty 2 # CE10160GA-2, I recommend using them on the front and rear of the trailer. You will also need CE Smith U-Bolts - Galvanized - 3-13/16" Long x 3-1/16" Wide x 1/2" Diameter - Qty 2 # CE15283GA-2 to secure the brackets to your trailer frame. If you have a lighter boat and would rather have the bunk brackets that allow you to angle the bunk...
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  • Recommended U-Bolts for Bracket Replacement on Boat Trailer With 3x3 Frame
    For U-bolts for your 3" x 3" frame you will want something that is slightly larger. If the measurements were listed as exactly 3" it isn't going to fit. What you need is the CE Smith U-Bolts - Galvanized - 3-13/16" Long x 3-1/16" Wide x 1/2" Diameter # CE15283GA. These U-bolts are the right size for your frame with a 3-1/16" width. They come in various quantities depending on your needs. 2 Bolts # CE15283GA-2 4 Bolts # CE15283GA-4 8 Bolts # CE15283GA-8 I have attached a review video for...
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  • Will CE Smith Bolster Brackets Handle Weight of Boat
    Yes, the CE Smith Bolster and Swivel Bracket Assembly # CE10000G will accommodate the weight of your boat. The only thing you will need to install them are U-bolts such as part # CE15283GA-2.
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  • Do the CE Smith Bolster and Swivel Bracket Assemblies 9" Come with U-Bolts
    The CE Smith Bolster and Swivel Bracket Assemblies 9" part # CE10000G-4 does not come with u-bolts as these are specific to your frame size. We do offer several sizes though such as the CE Smith U-Bolts part # CE15283GA-2 which are for 3" tall frames. If you can let me know what size you need I would be glad to help or you can choose from the list below.
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  • Recommended Bunk Brackets For Pontoon Boat Trailer
    If there is no flex in the bunks with the pontoon boat loaded, you should be fine with the 1/2 inch clearance. If you are possibly hitting the frame of the trailer when traveling I recommend replacing the bunk brackets with taller ones like part # CE10161GA. This bracket sits on top of the frame of the trailer and are 8 inches tall, and 5 inches wide with 4 mounting holes that are spaced 1-1/2 inches apart center to center. This will give you options to mount the bunks at the height you...
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  • Availability of 7 Feet Long 2 x 4 Carpeted Bunk Boards for a Boat Trailer
    The longest carpeted bunk boards we currently offer is 6 feet in length. It's the CE Smith part # CE27840 and each 6-foot long 2x4 is covered in marine grade carpet. You can easily construct some bunks yourself. Go to your local lumberyard and get some yellow pine 2x4x10 boards. You can then purchase some of the marine-grade carpet we offer, like part # CE11372. You'll need one roll per bunk, which means you'll have some scrap left over, which you can utilize as needed for other projects....
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  • Replacement Carpeted Bunks For Boat Trailer Recommendation
    We offer both carpet that you can use to replace your worn carpet on your bunks for your trailer, and we also carry replacement carpeted bunks for your trailer. The carpeted bunks we offer come in varied lengths. If you need 6 ft bunks, I recommend part # CE27840. These come in a set of 2, and is wrapped with marine-grade black carpeting. For 5 ft bunks, you would need part # CE27820, for 4 ft bunks, part # CE27810, and for 3 ft bunks you would need part # CE27800. If you decide you...
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  • Replacement Keel Roller for my Calkins Boat Trailer
    I have a couple of solutions but the sizes aren't exactly what you're after. I instead recommend using the CE Smith Deep V Keel Roller Assembly for Boat Trailers part # CE10405G to replace the 11.5" roller you currently have. This will allow for adjusting it to match your boats hull. Use CE Smith U-Bolts part # CE15283GA-2 if your hardware is missing or damaged. For the 7.5" use the CE Smith Deep V Keel Roller Assembly for Boat Trailers part # CE10403G with the same hardware as mentioned...
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    The CE Smith Swivel Bracket for Boat Trailers - Galvanized Steel - 2" Hole Centers - Qty 1 # CE10201G will work very well for your application. They are not rated for a specific weight capacity, but they work very well with the CE Smith Double U-Bolt Bolster Bracket - Galvanized Steel - 9-3/4" Tall - Qty 1 # CE10191GA or other heights along with u-bolt kit # CE15283GA-2.
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  • Type And Size Bolts To Attach Swivel Bracket To Carpeted Bunk Board.
    For bunk brackets we have CE Smith Bolster and Swivel Bracket Assemblies # CE10000G-4 as well as others at different lengths. To attach the brackets to the trailer frame you can use U-bolts such as # CE15283GA-2 which are 3-13/16 inches long, 3-1/16 inches wide, and have a 1/2 inch diameter. Or you could use # CE15283GA-4 which is the same thing only it comes with 4 U-bolts instead of 2. These mounting slots, are a length of 2-3/4 of an inch. There is a width of a 1/2 inch spacing in...
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    Image 1 for
  • What Parts Are Needed to Replace Roller Bunks with Wood Bunks
    While we don't have wooden bunks that are as long as you need we do have the brackets you can use with part # CE10000G-4 which you'd use u-bolts like the part # CE15283GA-2 to secure to the crossmembers that run left to right on your trailer. The front to back beams that your rollers are on would need to come off.
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    The CE Smith Boat Trailer for Boats and PWCs up to 12' Long - 800 lbs # CE48810 will work well to transport your boat on the interstate. The wheels cannot be switch to the 12 inch size without removing the fenders and adding larger brackets to accommodate the increased diameter. The wheel and tire combinations that come with the trailer are rated for speeds up to 65 mph. If you choose to change the tire size, I don't recommend going over the 12 inch wheels and you can use the Taskmaster...
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    Because the CE SMith Heavy Duty, Vertical Bunk Brackets # CE10160GA-2 are galvanized steel, I don't recommend welding them because of the inherent issues that come along with welding on a coated steel. These are designed to be secured to the trailer frame using U-bolts like the # CE15283GA-2, so I do recommend using that method. I've gone ahead and linked our entire selection of u-bolts in case you find that you need something a bit longer, as well.
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    Image 1 for Image 2 for
  • Recommended Bunk Brackets For Magic Tilt Boat Trailer
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    Image 1 for Image 2 for
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    Image 1 for
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Info for this part was:

Employee Lindsey S
Written by:
Lindsey S
Employee Joshua S
Video Edited:
Joshua S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
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