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Zinc-plated steel U-bolt kit allows you to attach roller-, bunk-, or post-style guide-ons to your boat trailer with a frame up to 3" wide x 5-1/4" tall. Includes 2 sets of mounting U-bolts.
Features:
Specs:
California residents: click here
Got the Longer trailer U bolts that fit the 5" frame yesterday.They are a perfect fit.Fast shipping and great communication.Thanks again.Ted C Clover S.C.
Needed longer U bolts to attach the Seasense Guide On Pole kit to the 2 X 5" beam of my trailer. These did the job. Fit the brackets fine. The only drawback is their "Pre-Galvanized" finish seems like nothing more than normal zinc plating of any bolt. I will prime and paint the brackets before using them to help prevent rusting.
Overall I would say a good product. Maybe not quite rigid enough for my heavier boat, but does its job. I made sleeves for the guides because the pvc tubes were leaving scuff marks on my paint
These have worked very well. We needed the larger size in order to mount the trailer guides on our boat trailer.
Victoria H.
3/14/2025
I'm happy to hear these are fitting your needs Fred! Do you have any upcoming boating adventures planned for this upcoming season?
After looking at multiple local stores, I turned to etrailer.com. The product was exactly what I was looking for and great quality. I know where to shop first next time.
Cody
2/17/2025
Great
Jerred H.
2/17/2025
Exactly what I needed! My boat trailer was too tall for the u-bolts that came with the CE Smith trailer guides but these extra-long bolts worked great. Arrived faster than expected too. Thanks guys!
Erin
7/10/2025
Great! Works as well as the day I installed it. Excellent solid product and purchase.
Nick S.
7/10/2025
Just the right size for the trailer!
Did not like the fact that the kit came with 5 U bolts and had to pay an additional $XX for 6” U Bolts. Apso, had to throw away the 5” U bolts which was a waste.
All that needed to be done was to offer a 5” kit and a 6” kit. Then customer can select t desired kit. No waste of U Bolts. . No additional $XX charge. Appears to be marketing gimmick to over charge customers. The U bolt kit worked fine, fit well, and was of reasonable quality.
These brackets usually last a long time even in salt water
Exactly what I needed. Great Customer Service
These longer U bolts allowed us to attach the trailer guides that our new BEAR trailer did not come with. The trailer guides are a game changer when putting our Bennington Tri-toon on the trailer, especially in the wind with the bimini tops up.
The Post Guide-Ons arrived quickly and have been installed.
They have not been water tested yet, but look like they will do the trick. Loading the boat on the trailer has been challenging when you can’t tell where you are side to side.
A couple things to consider: The width of the boat relative to the frame of the trailer make the bottom tubes of the guides just barely long enough. I believe it will work, but another inch of tube would be good for my setup. When installing, if you have a deep socket, you won’t have to switch to an open wrench. Other than that, I am very happy with these!
Excellent service and product worked pe rfectly.
Excellent product. Just as advertised. Easy to install solo and made of solid materials. Haven’t used to pull boat out yet, but can’t imagine it won’t guide me in great. I used the extra long U-bolt kit because of my trailer being 6 inches. Not sure why they wouldn’t just include them from the beginning as they are only a 1/2 “ longer, but that’s the way it goes. Very satisfied
The U-bolts fit perfectly to the 5” frame. They seem sturdy and appear galvanized as the product states. The cost, I think, is excessive for this product.
I updated my trailer by adding a set of guide-ons and its been a real plus especially on breezy days or loading /unloading by myself.
These bolts are perfect for our trailer.
Nick J.
7/21/2024
Still working great. Excellent product and completely satisfied with the purchase.
Once i received my 6" ubolts i was able to install my guides on my trailer.
parts arrived on times very satisfied with the service i will buy from e-trailer again
This was exactly the part i needed
2x5” square frame. 1.5x1.5” mounting bracket
Thank you Stacey for the assist!
Good product
I have purchased multiple items from etrailer and have always been very happy with the product line and customer service, both before and after the sale.
The bunks worked great. Boat went on the trailer nice.... fixed my issues 100 percent.
Product sturdier than i imagined. Installed so easily. had to get the longer u bolts for my frame. 60" was perfect for my 21' boat. Very happy with delivery and tracking ability. I am a new and satisfied customer.
Perfect, just what was needed. installation took 20-minutes, and back in the water !
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Russ
4/6/2025
One year later, still holding up. No issues