U-channel Truss Rod

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14-3/16" for Acoustic Guitar

Item # 1177
In stock, ready to ship!


10 or more $11.34

17-3/16" for Electric guitar

Item # 1177-E
In stock, ready to ship!


10 or more $11.34

22-13/16" for Bass

Item # 1177-B
In stock, ready to ship!


10 or more $11.34
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U-channel Truss Rod

About This Item

Strong aluminum one-way truss rod, similar to the design used by Martin for many years.

The aluminum U-channel has an internal 3/16" steel rod, and a 5mm allen adjusting nut with washer.
M6 x 1.0 thread
Width: 0.472" (12mm)
Depth: 0.400" (10.16mm)

#1177 Acoustic: Designed as a soundhole accessible truss rod, and is the same as installed in Martin guitars made after 2007.
14-3/16" (360mm)
#1177-E Electric: For peghead or heel adjustment. This style of rod is found in many production guitars, and is also preferred by many custom builders because of its simple design and strength.
17-3/16" (437mm)
#1177-B Bass: For control of beefy bass necks. Can be installed for peghead or heel adjustment.
22-13/16" (579mm)


Product Instructions

Truss Rod Installation

Single-action adjustable truss rod for Martin installation instructions.

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  • 4.59 average rating from 29 reviews
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Very nice lol

(Customer's Reviews)

So you wanna use a truss rod well this is the one to use . easy to install and works great for thin profile necks like i build
Stringwood guitars


What Happened?

(Customer's Reviews)

I bought several of these only to find that they are too wide to fir the 7/16" slot that I have been using for 20 years. They are in fact, wider than the Gotoh and Martin truss rods. The catalog picture does not show the actual product I received and the description doesn't mention the required slot width. All of my neck and headpiece fixtures rely on a 7/16" slot for registration, making these rods unusable. Too bad, they're good rods.


Does the job

(Customer's Reviews)

Good truss rod for the price, but not as good as the stew Mac double action. A bit bulky, but does the job.

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StewMac PDF Catalog, page 74 See U-channel Truss Rod
on page 74 of our StewMac Catalog PDF

12MB File

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