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When dealing with suspension systems, the Spring-Eye Bolt with Locknut for Slipper Springs offers an ideal fit every time with its precise 3-1/2-inch length. The 2-3/4-inch smooth shank before the threads ensures it seats properly in your hanger or shackle setup, eliminating the hassle of mismatched connections and reducing installation time.
Struggling to keep bolts from shifting under loads? The knurled end of this bolt provides a firm grip, making it perfect for withstanding the stresses of trailer suspension systems. This feature holds your spring-eye bolts securely in place, giving you peace of mind, mile after mile.
The robust 9/16-inch diameter makes this bolt ideal for heavy-duty applications, ensuring longevity and reliability under pressure. Perfect for utility trailers, campers, or car haulers, this bolt is designed to keep your suspension solid and secure.
High quality is not just a buzzword here. Crafted from premium steel, this bolt is built to last. It's ready to handle all your towing needs, from frequent trips to occasional heavy-duty hauls, with lasting strength and durability.
For those who prefer hands-on maintenance, this bolt allows manual grease application. While it lacks a grease fitting, it offers flexibility for those who like to ensure each component is perfectly oiled to minimize wear and tear.
Whether you’re restoring a classic trailer or upgrading your current hauler, this bolt adapts to a variety of configurations. Its versatile design makes it an excellent choice for anyone looking to maintain or improve their trailer's performance.
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 (502 Customer Reviews)
9/16" Diameter spring-retainer bolt is used to mount slipper spring inside front hanger. Includes locknut.Fast Shipping!!!!
Great
Product worked great. Easy to install.
Perfect as ordered!!
Great Prices and service!!!!!!!!!!!!!!!!!!
Great fast delivery and product exactly as shown
Great product that was shipped within 4 days.
Impressive delivery. ordered 4 tires and wheels Monday night and received them Wednesday. Thanks, great products great service.
Everything sent was excellent quality and very quick in getting to my home. Fantastic service and products!
We run a farm operation with multiple pieces of equipment. Etrailer's prices and prompt service saved us a great deal of time and money. The pictures with specifications is a serious help. Definitely will be ordering from them in the future.
delivery was awsome fast, parts fit perfectly
extremely happy with, the total expirence with etrailer.com I will order again.
Thank You
Joe
I just received and installed the spring hardware I ordered from etrailer and I must say I am well pleased. Shipment was prompt and the parts were exactly what I needed and at a great value. I was pleasantly surprised that my order was processed and shipped so quick being a small order. I will definitely use etailer again.
Happy towing!
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!
NO issues. Trailer working as intended.
I have bought many different products from Etrailer and the staff have been more than helpful and I would recommend this company.
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.
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.
The box was ripped up. All parts are th ere.
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.
Quick delivery
Fit perfect
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
Worked well, and the locking nuts with it are great
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David
11/30/2019
It’s been a year already! How time flies. Every things still working great thanks again.