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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.
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Ratings & Reviews
These bolts were just what I needed to install my new leaf springs on my boat trailer. Etrailer does it again. Two thumbs up!
All Parts for trailer suspension fit perfectly. Shipping was lightening fast. Excellent products and service.
Dave S.
5/18/2018
Several long trips under it’s belt now. Working like a champ!
Excellent service. Thank you.
The original spring bolts were 1/2" these are 9/16" and I had to enlarge mounting bracket holes but satisfied with these stronger bolts. The springs and all other hardware high quality at a very good price.
Patrick M.
4/17/2021
Great. Quiet, firm ride. Handles great.
Beefy worked perfectly
Best customer service I have had in a long time. Site is easy. Excellent
Very happy
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
Nice hardware. The video on the site is fairly clear about installation, but it could be more straightforward and tell you to put the nuts on so that the little “dings” that make these locknuts are to be on the “outside” of the connection. That is, you’d see them once installed. Also, depending on the exact size of the 9/16 eyehole you have you must do some serious hammering to seat the bolthead properly with the fluted bolt.
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
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.
Quality Grade 8 bolt with splines to prevent turning.
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.
Quality and speed of delivery is 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.
Exactly what I needed. Great description in specifications and notes.
I have bought many different products from Etrailer and the staff have been more than helpful and I would recommend this company.
David
11/30/2019
It’s been a year already! How time flies. Every things still working great thanks again.
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.
Fast shipping and very thorough communi cation.
Good product just a little bigger than what I removed, no issues minor modification
Everything work out good
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!
Hi quality hardware. No reason trying to salvage old hardware if this is available.
ordered on a Saturday, received my order the following Wednesday. Great!
Wasn't what I thought it was. Thought this was the round head bolt that went through the springs and gave the top plate of the u bolts a center.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Jason S.
7/21/2017
Your products and customer service is excellent. You have a dedicated customer with me