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4mm Allen Nut Hot Rod Truss Rod

4.5
  • 113 Reviews
  • Write a review
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12-1/4" overall length

Item # 2550
In stock, ready to ship!

$15.79

6 or more $13.74
12 or more $12.95
+

14-1/4" overall length

Item # 2551
In stock, ready to ship!

$15.99

6 or more $13.91
12 or more $13.11
+

18" overall length

Item # 2552
In stock, ready to ship!

$16.99

6 or more $14.78
12 or more $13.93
+

24" overall length

Item # 2553
In stock, ready to ship!

$20.99

6 or more $18.26
12 or more $17.21
+
 
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4mm Allen Nut Hot Rod Truss Rod

About This Item

A smaller 4mm (5/32") Allen nut for most instruments. Smooth two-way action corrects upbow and backbow, giving complete control over the neck.

Easy to install. The Hot Rod® fits in a straight channel. For proper operation, this truss rod must be installed so that the active rod (the rod with the adjustment nut) is below the passive rod. A wooden filler stick is not required.

Smooth 2-way action with superior strength for stubborn necks.
Our Hot Rod neck adjustment system features twin rods in threaded brass collars. The stainless steel active rod turns for smooth neck alignment, with 2-way action to correct upbow and backbow.

The Hot Rod requires an access cavity for the adjustment nut, and a straight 7/32"-wide x 7/16"-deep slot (measured from the bottom of the fretboard) for installation.

Pick the Hot Rod Truss Rod size you'll need:
(overall length includes the nut)

Instrument
Resonator guitar
Acoustic guitar with 12th fret at the body
Acoustic guitar with 14th fret at the body
Electric guitar
Banjo
Bass
Size
12-1/4"
12-1/4"
14-1/4"
18"
18"
24"

We've designed the Router Bit for Hot Rod Truss Rods especially for routing your neck to fit our truss rods.


Instructions

Product Instructions

Hot Rod Adjustable Truss Rods

Installation and adjustment instructions for Hot Rod Adjustable Truss Rod.

    • Item #
    • Weight
    • 2550
    • 0.1970 lbs. (0.09 kg)
    • 2551
    • 0.2320 lbs. (0.11 kg)
    • 2552
    • 0.2960 lbs. (0.13 kg)
    • 2553
    • 0.3850 lbs. (0.17 kg)

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4.5
  • 4.46 average rating from 113 reviews
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Displaying 9 of 12
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5.0

Easy to install and works great

By
(Customer's Reviews)


I've used these in several guitars and basses. They are far superior to the traditional Gibson style truss rod setup. For one, they install easy - just cut the flat channel, and pop it in. No top filler stick is required. No cutting, tapping of threads or peening and anchor nut. They adjust upbow and backbow, and respond quickly to just a slight turn of the nut. Well worth the few extra dollars. They are a bit deep, so pay close attention when shaping your neck in the erea below the nut.

4.0

Pretty straight forward

By
(Customer's Reviews)


Nice sturdy rod and very easy to install. The only minor scruple I have is that the adjustment nut gained a bit of surface rust fairly quickly. Other than that it is a great product, happy to have used it

5.0

Easy to install

By
(Customer's Reviews)


These are not only high quality but much easier to install than conventional truss rods. And they adjust both ways, can't ask for a better product.

5.0

4mm Allen Nut Hot Rod

By
(Customer's Reviews)


I couldn't be more pleased. The installation of the truss rod & carbon fiber rods was as simple as it could possibly be when used with the corresponding router bits. I will be able to show my customers my commitment to high quality in the instruments I build by the use of these products provided by Stew-Mac. Thanks, I haven't been disappointed with any product I've purchased from Stew-Mac yet. Thanks, "Doc" DiLorenzo guitars & basses

4.0

Good truss rod

By
(Customer's Reviews)


I installed this Hot Rod truss rod in my guitar neck and it fits correctly, thanks for the instruction note delivered with it

5.0

I love this rod

By
(Customer's Reviews)


I use this rod in all of my guitars and if I rebuild a neck this is the rod I use.

5.0

Works!!!

By
(Customer's Reviews)


I installed this truss rod in a strat style guitar. Easy to fit and it works very well!!!

5.0

Easy To Install

By
(Customer's Reviews)


Easy to install and adjust. Its the only rod I use in my custom necks now. They are a little deep so watch you neck thickness at the nut.

5.0

Spoke Wheel truss rods are great!

By
(Customer's Reviews)


I recently started using StewMac's spoke version of the hotrod truss. I have to say these are awesome... I was not able to find these from anyone else. The construction is top notch (as always) and they add extra ease and simplicity to the setup.
Thanks StewMac...

5.0

The perfect truss rod for that special build!

By
(Customer's Reviews)


This is the only truss rod i've ever used for all my builds and will always be the one I order. The double action is very handy for adjustments. Don't forget to order the special sized router bit for this truss rod here at Stew Mac!

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StewMac PDF Catalog, page 74 See 4mm Allen Nut Hot Rod Truss Rod
on page 74 of our StewMac Catalog PDF

12MB File

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  • Hot Rod® is a registered trademark of Stewart-MacDonald Manufacturing Company, Inc.