Arrives before Christmas 
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9/16" Diameter spring-retainer bolt is used to mount slipper spring inside front hanger. Includes locknut.
Features:
Specs:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Jeff: Hello, everybody. This is Jeff at etrailer.com. Today, we're going to take a look at the 9/16th diameter, 3 1/2 inch long spring eye bolt with the lock nut for slipper springs. Now this 9/16th diameter spring retainer bolt is used to secure the slipper spring to the front hanger of your slipper spring trailer suspension. The 3 1/2 inch long bolt is common on trailers that have a 6,000 pound or 7,000 pound axle and uses 2 inch wide leaf springs.Now, the bolt itself is a grade five bolt. The way we can tell that is, if you look at the head, you'll see three lines on it.
That'll indicate that that meets the grade five designation. The length on this is 3 1/2 inches, and that's measured from under the head to the end of the bolt, so there's your 3 1/2 inch length. Diameter of this bolt is 9/16th of an inch. The thread size on the end here that the lug nut or the block nut attaches to is 9/16th by 18 threads per inch. Now the bolt head size is a 13/16th of an inch, and let's show you here's a 13/16 socket.
Oops, wrong one. Here's the 13/16 size socket. You can see it fits securely on there.And the lug nut size uses the 7/8th inch size socket, and that's the first one here I pulled. And you can see that fits exactly on there. And this included lock nut is what will secure this bolt to the spring eye.
But that should do it for the review on the 9/16th diameter, 3 1/2 inch long spring eye bolt with the lock nut for slipper springs.
Average Customer Rating: 4.8 out of 5 stars (488 Customer Reviews)
9/16" Diameter spring-retainer bolt is used to mount slipper spring inside front hanger. Includes locknut.Great Experience!
When I noticed that the leaf springs on my 44 year old boat
trailer had cracked I thought I would never find replacements.
I fully expected to have to have something custom built.
I was amazed when I found the fantastic diagrams/descriptions
dimensions for replacement springs on etrailer.com
The phone support person was wonderfully helpful in confirming
if items were in stock and ready to ship. The replacement springs
arrived on time and everything bolted up perfectly!
Thanks for such a great site!
Worked well, and the locking nuts with it are great
I will be disassembling and do a further visual coming up. But what I did see while on the trip is that it definitely looks as the rollers (gold colored like a grade 5 - 8 bolt, I'm assuming they are hardened) that are in the system to roll on the slipper springs are showing wear.
I have bought many different products from Etrailer and the staff have been more than helpful and I would recommend this company.
Just what needed for my trailer. My old leaf springs were so rusted that I was one pot hole away from being broken down on the side of the road. These new ones are perfect.
I have purchased a number of items from etrailer.com such ans leaf springs, axle and hub assembly, and other items as well, I recently finished the trailer and it is now on a cross country trip. The trailer has just finished a 3,000 mile leg of this trip and I am told it was so smooth that it could not be felt by the towing vehicle.
Every product I have ordered from etrailer.com has been top quality and has worked extremely well. I would come back again for any of my future trailer needs.
Robert H.
6/27/2018
The trailer has since been on a second cross country trip and it is still working just like it was the day I finished it.
Great products from e trailer. They work as expected and hassle free. Even better prices.
Matt
4/10/2022
The trailer springs and brackets have been great no issues at all. Very pleased with etrailer products.
NO issues. Trailer working as intended.
Super service getting all the right parts. I received the parts in just two days it took about one hour to change both springs .everything fit grate back on the road.thanks
Customer Service was / is excellent. Timely delivery easy ordering process. Correct parts and easy to install Great Company and would use again when I need to
When I asked questions about my order they answered back quickly. Everything fit like it should. Yes time will tell if the springs are good.
Longtime customer. Always quality parts and fast shipping.
As described
Perfect, e-trailer service is simply aw esome!
Two of the bolts were sent as the wrong size...they were properly labeled, but were 9/16 instead on 1/2. Kylie requested photos of the bolts to "prove" they were incorrect which kind of frustrated me further. She is sending new ones to me soon. One of the hub kits arrived with the seal broken and the contents were scattered in the shipping box, but all the parts from the kit were there, so no harm done.
Quick delivery and product as described
Working with Madison was flawless.
Fast shipping great selection.
Perfect fit. Excellent quality
Great company to do business with and very knowledgeable assistants! Recommended
Just what I needed!
It's 4 in long and no shoulder.
I received the order to late to use before my road trip.In total, it took 27 days to receive my order. I placed my order on September 1st and received the package on the 8th. Whomever packaged the order used a very larger box and three sheets of packaging paper. By the time I received the order it was missing half of the items I ordered. I emailed etrailer immediately and received a response quickly. I was told that a replacement order was sent to their warehouse or shipping department and they would send the replacement parts. However, this is where things started to brake down. I asked for a projected delivery date and i was told that it usually takes 3 to 5 days once it ships and they would send me an update once it shipped. On the 14th I still had not received an email stating the order had shipped so I emailed etrailer again. I left on my road trip on the 15th so did not have the time to check my emails until the 19th, and found I had not receive a reply yet so i sent another email. The response I received stated that they had sent me an email on the 14th to notify me that one of the missing items from my original order is now back ordered. I reviewed my email inbox and junk mail on three devices that receive all mail sent to my email address. I did not receive an email from etrailer as stated. Bottom line, i didn't receive the replacement items until the 27th. This put me on the road without the trailer parts I was counting on for my trip. I'm not a satisfied customer.
fast order fulfillment, great products
These bolts were excellent for bolting things together. I had tried using a whittled down stick of butter at first, but couldn't get any respectable longevity out of it. Then I found these bolts and my world was turned upside down! No more time wasted shaping butter sticks to fit my trailer suspension. These bolts come correctly sized right from the factory! No more embarrassing incidents of my axles falling out as the butter melted and turned soft. If you need to secure your axles to your trailer, these are the bolts for you!!
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David
11/30/2019
It’s been a year already! How time flies. Every things still working great thanks again.