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  1. Boat Trailer Parts
  2. CE Smith
  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

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

Part Number: CE15283GA-2
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$28.95
Boat Trailer Parts
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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 (330)
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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




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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:  4.8 out of 5 stars   (330 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.

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

  • How To Mount RC Manufacturing Trailer Tongue Tool Box 350970 Without Drilling Holes In Frame
    Since you are not wanting to drill all the way through the aluminum frame on your H and H trailer, you can use U-bolts like # CE15283GA-2 to go around the frame of your trailer, and up into the RC Manufacturing T-Series Trailer Tongue Tool Box - A-Frame - Aluminum - 2.6 Cu Ft - Silver # 350970 to mount it. The # CE15283GA-2 are galvanized so the will not rust, but you will want to make sure they are large enough for your frame rails. These U-bolts measure 3-13/16" long and 3-1/16" wide,...
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  • U-Bolts For Attaching CE Smith Vertical Bunk Bracket # CE10162A40 to Boat Trailer Frame Crossmember
    The CE Smith U-Bolts # CE15283GA-2 are the correct size to fit the Replacement CE Smith Vertical Bunk Bracket # CE10162A40 that you have. These square U-bolts are 3-13/16" long 3-1/6" wide and are 1/2" in diameter. If you are going to require longer U-bolts based on your frame, those would need to be sourced locally.
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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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  • What Hardware Is Needed To Mount CE Smith Panel Bracket CE10305G For 12" Keel Roller?
    To mount the CE Smith Panel Bracket for 12" Boat Trailer Rollers - Galvanized Steel # CE10305G you were looking at you have two options. The first being welding the bracket to your trailer. If you go this route you need to make sure to sand off the galvanized coating as it gives off a harmful gas when it is welded. The second and more common option is using U-bolts. The U-bolts will need to match the size of the frame on your trailer so you will need to measure that. For example we have...
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  • 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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  • Recommended Replacement Bunk Brackets for a Escort Boat Trailer
    The 9" CE Smith Bolster and Swivel Bracket Assembly item # CE10000G you were looking at, are our go to for replacement bunk brackets. We have had quite a few customers over the years use these on Escort boat trailers. These are sold individually or in four packs item # CE10000G-4. The swiveling brackets will allow you to mount your bunks at any angle. We also offer 11" tall brackets item # CE10001G for a single or item # CE10001G-4 for a four pack. If you don't have holes to mount...
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  • Compatibility of CE Smith Swivel Bracket with HE Parmer Bolster Bracket
    They would indeed work together. The # HP55FR is the portion that would attach directly to the bunk which would attach to the # CE10101G bolster bracket would would attach to the trailer itself. When the bolster and swivel are assembled, they'd look like part # CE10001G. To be honest, I'd recommend simply going with the # CE10001G as the hardware to assemble them is included that way. The angle of the swivel bracket is adjustable. The galvanized u-bolts for attaching the bolster brackets...
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  • Can I Use Roller Bunks and Carpeted Bunk Boards Together on Boat Trailer
    I'll start off by saying that I've seen quite a few boat trailers that use a combination of rollers like the CE Smith Roller Bunks for Boat Trailers - 6 Rollers Each - 5' Long - 1,500 lbs - 1 Pair # CE27710 and a carpeted bunk like the CE Smith Carpeted Bunk Boards for Boat Trailers - 7' Long - 1 Pair # CE27845. The rollers definitely help if you're on a lot of shallow or steep boat ramps and combining the two gives you the best of both worlds, with the rollers on the bottom and boards...
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  • 8 Inch Bunk Brackets and U-Bolts to Attach Them to 3 Inch Frame
    We do have the parts you need and let's start with the brackets; the 8 inch tall brackets you need are the CE Smith Heavy Duty, Vertical Bunk Brackets # CE10161GA-2. Then in order to mount them to your 3 x 3 frame the U-bolts you need are the CE Smith U-Bolts # CE15283GA-2. I have added links below to video reviews of both parts for you to check out as well if you'd like.
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  • Is Mounting Hardware Included with CE Smith Bolster and Swivel Bracket Assemblies, # CE10000G-4
    The CE Smith Bolster and Swivel Bracket Assemblies, # CE10000G-4, do not come with any mounting hardware. Because the brackets can be used for different size and type bunks they do not include the hardware because it would not cover all applications. The holes that attach the bunk board to the swivel bracket are 3/8 inches in diameter. 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...
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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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  • 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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  • What Brackets Needed to Install Bunks on Boat Trailer
    We sure do, I'd recommend the # HP52FR bunk bracket and u-bolts like # CE15283GA-2. We also offer pre-carpeted bunks in various lengths, as part # CE27800 for a 3 foot, # CE27810 for a 4 foot, # CE27820 for a 5 foot, # CE27840 for a 6 foot and # CE27845. Or, you can provide your own boards and carpet them using bunk carpet like # CE11349.
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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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  • Recommended Bunk Brackets For Magic Tilt Boat Trailer
    I have an option for you, but we do not have any bunk brackets that match what you currently have installed. Instead I recommend the CE Smith Bolster and Swivel Bracket Assemblies - Galvanized Steel - 9" - Qty 4 # CE10000G-4 which will attach to your Magic Tilt Boat Trailers Frame by a U-Bolt which is not included. These brackets will fit frames up to 6" tall. The correct U-bolts will be dependent on the size of your frame. For example if your frame was 3" x 3" you would need the CE Smith...
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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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  • Can CE Smith Keel Roller CE29505 be Used With Jon Boat Trailer
    We don't offer 2 inch keel rollers, so you may have meant the 12 inch CE Smith Keel Roller for Boat Trailers - Self Centering - PVC - 12" - 5/8" Shaft - Amber # CE29505. And yes, you can use these on your boat Jon boat trailer, and to do so you will need the Roller Shaft with Pal Nuts for Boat Trailer Rollers - Zinc-Plated Steel - 13" x 5/8" # CE10727A and CE Smith Panel Bracket for 12" Boat Trailer Rollers - Galvanized Steel # CE10305G. The bracket can be installed with U-bolts such...
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  • Recommended Swivel Bracket for Bunk Board with 2 Inch Bolt Spacing
    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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  • What Additional Bracket is Needed with the Replacement CE Smith Heavy Duty, Vertical Bunk Bracket
    The other bracket mentioned in the description means that you would need two of the part # CE10162GA to stabilize the bunk bracket. For the u-bolts to use with this kit you would want the part # CE15283GA-2.
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  • Hardware Requirements to Install CE Smith Deep V Keel Roller Assembly CE10455G
    The specific hardware to best install the CE Smith Deep V Keel Roller Assembly # CE10455G really depends on the desired mounting point on a particular trailer. U-bolts like # CE15283GA-2 are often a good option but other galvanized hardware you source locally may be better in some cases. Generally one pair of u-bolts would be sufficient for each roller in most typical installations.
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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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  • What Are Keel Rollers For On a Boat Trailer and Should I Add One
    The keel rollers on a boat trailer are deigned to absorb shock while loading and launching your boat so you don't put as much stress on other components such as the bunk boards. The correct one will be chosen based on the shape of your boat's hull and the dimensions of the trailer frame. The CE Smith Deep V Keel Roller Assembly part # CE10405G is a great universal option. The only other thing you would need is u-bolts like the CE Smith U-Bolts part # CE15283GA-2 that match your frame. I...
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  • Roller For Use With Tourney Pro Transom Saver
    The right roller will depend on the frame of your boat trailer for use with the Tourney Pro Transom Saver # 315-FXJ. For example, you can go with the Deep V Keel Roller Assembly for Boat Trailers # CE10401G and the 3-13/16" Long x 3-1/16" Wide CE Smith U-Bolts # CE15283GA-2. If those aren't the right size U-bolts I've added a link below to our entire selection which you can filter through by size.
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  • Can I Weld the CE Smith CE10160GA-2 Heavy Duty, Vertical Bunk Brackets
    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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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:
Wilson B
Employee Alexander C
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Alexander C

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