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Redline

Leaf Spring Center Tie Bolt with Nut, 3/8" x 3"

Part Number: 38-3TB

79 Reviews | 3 Questions

In Stock

$7.79

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redline trailer suspension parts 3 inch long leaf spring center tie bolt with nut 3/8 x

redline trailer suspension parts bolts leaf spring center tie bolt with nut 3/8 inch x 3

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Review of Redline Trailer Suspension Parts - Suspension Bolts - 38-3TB

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SCHEDULE AN INSTALLATION

Great Prices for the best trailer suspension parts from Redline. Leaf Spring Center Tie Bolt with Nut, 3/8" x 3" part number 38-3TB can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.

Redline Trailer Suspension Parts - 38-3TB

Highlights

3/8" Diameter x 3" Long: Correct size for securing stacked leaf spring packs together.
Includes Bolt and Nut: Comes with what you need to fasten the spring center securely.
Centers Leaf Spring Pack: Keeps spring leaves aligned to prevent shifting during towing.
Hand Tight Install: Designed to be tightened with standard hand tools for easy setup.
Strong Steel Construction: Holds up under road vibration and heavy trailer use.
Works on Multi-Leaf Springs: Common replacement for worn or rusted center bolts.

Features to know about

Simple Way to Keep Your Leaf Springs Aligned: 3/8" x 3" Center Tie Bolt with Nut

When the center bolt on a leaf spring pack wears out or breaks, your spring leaves can shift and lose alignment. This replacement tie bolt brings everything back together with a 3/8" diameter and 3" length that fits standard spring stacks. It includes both the bolt and nut so you can secure the pack and restore proper spring tension quickly.

Reliable Connection for a Solid Ride: Strong 3/8" Diameter Steel Hardware

A loose or missing center bolt can cause the pack to fan out under load. This steel bolt provides a sturdy center anchor that locks the leaves tight, keeping the spring working as one unit. That solid connection helps maintain a steady ride and consistent suspension performance.

Easy Maintenance and Installation: Tighten by Hand Tools

You don’t need special torque specs or shop equipment for this job. The bolt is designed to be tightened hand tight with standard hand tools, making it simple to install when you’re refreshing or rebuilding your trailer suspension.

Specs

Dimensions

Bolt Diameter: 3/8"
Bolt Length: 3"

Included Components

Includes: (1) bolt and (1) nut

38-3TB Leaf Spring Center Tie Bolt with Nut, 3/8" x 3"

Video of Leaf Spring Center Tie Bolt with Nut, 3/8" x 3"

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Demo Redline Trailer Suspension Parts Suspension Bolts 38 3TB

Review of Redline Trailer Suspension Parts - Suspension Bolts - 38-3TB

Video Transcript for Review of Redline Trailer Suspension Parts - Suspension Bolts - 38-3TB

Hello, neighbors. Steve here with etrailer.com. Let's take a look at our leaf spring center tie bolt with nut. Folks, this is a 3/8-inch thick by three-inch long tie bolt with the included nut. So you can see, it's threaded all the way down. It has a flat head, and you got the nut right here.

So you're gonna get quantity one nut and quantity one bolt. (hardware clunks) And just a simple look together today, folks. Again, a trailer leaf spring tie bolt with nut. I'm Steven. Thanks for watching.

4.7

79 reviews

5 Stars		(68)
4 Stars		(4)
3 Stars		(3)
2 Stars		(2)
1 Star		(2)

by: Mark 07/01/2026

Product does what it's suppose to do, but I ordered two but only one got shipped.

by: David 05/28/2024

Fit fine,just what I need for my 4x8 trailer repair.

David One Year Later

5/28/2025

Everything still 100 thanks to Etrailer!

by: James 09/09/2025

My order was easily ordered. It arrived exactly when they said. The parts fit perfectly.

by: Johnny 02/19/2026

Everything was flawless. Excellent.

by: Richie 06/18/2018

They were just what I needed, great quality, fit perfectly into my leaf springs I am very satisfied with them and shipping was faster than I thought, awesome company I definitely will be doing more business with you for sure.

Richie One Year Later

6/18/2019

They are the perfect leaf spring bolts for my application no problems what so ever very happy with them. Thank you.

by: Robert 01/30/2026

Mmmmm more a standard cap bolt as compared to the actual center tie bolt.

by: Snerd 09/23/2025

Good fit, worked fine

by: Keith 05/26/2021

The products are perfect but what’s even better than that is how Stacey A handled my call the morning after I ordered my parts online. Stacey was perfect, she id’d that one of the parts I ordered would not fit what I needed it to fit, PERFECT OBSERVATION. I screwed up in picking the part I couldn’t use and would have to reorder and wait for it to come, no time wasted because of Stacey. Commend her for me Please!!

by: Ray 10/08/2021

Added an extra leaf to my trailer springs. Original bolt was too short.
This was a perfect fit.

by: Robert 12/21/2024

First t as expected, saved me from buying four new leaf springs.

by: Troy G 07/25/2017

Excellent pricing and quality. Delivery was on time and seller was outstanding with Communication. Highly recommend that you Buy from etrailer!

by: Jason K 08/23/2016

What I needed for less with cheap shipping thru the mail.

by: Kerry 08/29/2023

Very informative on shipping

by: Roy 11/10/2018

Leaf spring bolts Just what I was looking for at the right price and right length Thanks Again

by: Charles 02/04/2022

Worked like it should and was the cheapest replacement I could find. The shipping was super fast.

by: John 11/30/2021 One Year Later

Fit perfect and worked as it should.

by: Greg B. 06/02/2015

Product arrived as described, quality was great.
The product was shipped fast.
Will do buissness with them again.

by: Norm 03/25/2016 One Year Later

Parts fit exactly

by: shawn thaxton 03/17/2015

Just what I needed couldnt get it local anymore thanks for awesome service and selection.

by: Lano 05/03/2019

Very good I got what I need on time, price lower that other store.

by: Richard 10/17/2020 One Year Later

Works well

by: John 07/01/2021

Good quality and price

by: James 10/12/2026

by: Geoff 09/19/2022

Great product at great prices!

by: Robert 11/14/2020

good service quality product

true

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See what our Experts say about this Redline Trailer Suspension Parts

Do you have a question about this Trailer Suspension Part?

What Replacement Hardware do I Need to Use with My Slipper Springs # # SP-161275?
For the axle U-bolts, we have two different options: - 3" Round Trailer U-Bolts 9/16" Diameter # SP01-080 - 3" Round Trailer U-Bolts - 1/2" diameter # SP01-060 Since these bolts are so close in diameter, I recommend measuring the specific diameter of the bolts you have. For the spring-eye bolt, the correct bolt is the Spring-Eye Bolt with Locknut for Slipper Springs - 3-1/2" Long # 166079 As for your broken 3/8 inch bolt, we have Leaf Spring Center Tie Bolt with Nut, 3/8" x 3" # 38-3TB....
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Is There Torque Spec for Leaf Spring Center Tie Bolt part # 38-3TB
Hey Mike, there isn't a torque spec listed for the Leaf Spring Center Tie Bolt part # 38-3TB so best option is hand tight with hand tools.
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Recommended Replacement Parts for a Travel Trailer With 3.5K Axles
I believe we have just about everything you need, ideally we'd need you to measure your center bolt and u-bolts to make sure the here will fit. So, for a center bolt you can use the Leaf Spring Center Tie Bolt with Nut # 38-3TB which measures 3" long and is 3" in diameter. If you need something different let me know what size bolt you need and i'd be happy to find something else. For u-bolt replacements, you can use the 2-3/8" Round Trailer U-Bolts # SP01-040 which should fit your axles,...
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Do you have a question about this Trailer Suspension Part?

Info for this part was:

Expert Research:

Jameson C

Installed by:

Steven C

Updated by:

Wilson B

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