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9/16" Diameter spring-retainer bolt is used to mount double-eye spring inside front or rear hanger. Includes locknut.
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Customer Satisfaction Score:
100% were satisfied with this product
0% of customers were not satisfied
Ratings & Reviews
Typical eTrailer service we've come to love!
fantastic pricing and availability.
I was happy with the products and the shopping experience. I do wish the shipping would have been a little faster, but you can't have it all, I suppose.
Kit was packaged excellent. It lifted my trailer enough to help my clearance issue. The directions are good and products are well made. Very happy!
good quality and fast shipping
I had rusted old bolts and leaf springs, these were great replacements. No issues look great work well and fast shipping.
Exactly what i needed for my boat trail er
I replaced my leaf springs and shackles on my trailer and these bolts fit perfect. They come with lock nuts and they definately won't be coming loose. If I had to do it again I would have bought an impact wrench to make the job go quicker.
Great product, great service, can't say enough good things about trailer...
No issues and perfect fit
Bought many parts, wheels & tires for a small horse trailer restoration project. Received everything purchased quick and all parts were perfect. Made the job go as smoothly as a 25 year old trailer restoration can go.
The bolts fit perfectly to the new springs. Shipping thru USPS was extremely slow , they diverted the route. I would have prefered UPS GROUND - they are much more efficient shippers.
Perfect replacements for original bolts.
I bought a used Jon Boat trailer and first time out the shackle bolt gave out. Perfect fit for my application and I really like the way the nut was made so that it locked on the bolt. I used these with the Never Fail Bushings. I had to drill out the shackle to accommodate this beefy bolts but that wasnt a big deal. I ended up doing both sides that had standard bolts instead of wet bolts. Not sure why only 2 were regular 3/8 inch bolts.
I purchased the 3000# axle springs and all mounting hardware to replace the old ones on my 1963 travel trailer. My trailer no longer leans to the left and goes down the road better than new. I should have done it many year ago. I received my package on time and installation was easy and fit perfect. Thanks Bridget
These are the exact bolts used by the manufacturer of my trailer. I had a spring break after 10yrs use, so am replacing the springs and all the bolts at the same time, thank you to etrailer for the springs (ordered earlier) and now the bolts/nuts, all arrived quickly and accurately, you are my first choice for all trailer parts for my 7 trailers, thank you and keep up the good work!
They are perfect. Hope to finally get that trailer back on the road
Other than the parts taking a month to process, once they were gathered and packaged, they were delivered within 2 days! I replaced both sides with new 3-leaf double eye springs, 4 shackle straps, 6 shackle bolts, 2 Dexter U-bolt plates, and 2 U-bolts. They were really easy to replace and I did it quickly. Looks great, gonna take her out soon.
I mean its a bolt. LOL. It was an exact fit replacement though. So far it has been working well.
I bought springs, shackle bolts, and u-bolts and plates. Everything was great and fit perfectly. Only issue were the u bolts which were not galvanized. However, at a local trailer store, I bought galvanized U bolts for $4.50 each.
For the DYIers, taking the old ones off took more than 4 hours for each side. My existing shackle bolts were so heavily rusted that I had to cut three off with a hack saw. Difficulty was confined space to operate hack saw with boat still on trailer. However, reassembling the new springs was less than 45 minutes each side.
Must have tools are large diameter 3/4-13/16-7/8 deep sockets (6 point), 2 2 foot long breaker bars and a can of PB blaster.
For safety: Good quality jack stands, minimum of 3--don't rely on the front trailer jack as it may roll.
By the way, I did these myself and I am 64 years old.
When I ordered my kit from etrailer to replace the double-eye leaf springs on my 1970 Shasta Trailer, I decided to save a few bucks and get the bolts at my local hardware store. Big mistake! You wouldn't think a simple 3 inch bolt would be hard to find in your local hardware store. But in fact, i checked five hardware stores and none of them had this particular bolt. What a waste of time! I should have learned my lesson by now, and just give all my parts business to etrailer.com. I have probably spent more than $1000 in the past several months refurbishing our 1970 Shasta. Totally satisfied with the selection at etrailer, and the service is second to none!
I think etrailer is Great. I think their customer service is fantastic. My wife and I were in Arkansas, 1200 miles from our home in Ft. Myers Florida. I replaced the original springs on our trailer with new heavy duty springs, but never changed the hangers or bolts. Our trailer was riding very poorly, we needed new hangers and bolts badly because we were headed on a very long 9000-mile trip with many stops all the way to the Monterey CA. etrailer found us a UPS Store along our route to send us the parts that we needed. Many thanks to etrailer for great parts and Fantastic customer service and for helping us with our most Wonderful Adventure!
Great fit, good quality replacement
Everything I have bought has been of very high quality, fit and finish. Can’t ask for more, Thanks
Arthur
7/23/2026
Terrific, can’t ask for more …
These made installation much easier. When I took the old ones out, I found wear grooves in them.
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William
1/21/2019
Still going strong!!! I dont really beat on my stuff. I was given a trailer that had seen better days, I rebuilt most of the mechanicals on it & its still serving me well…Thanks for the follow up though…