4mm Allen Nut Hot Rod Truss Rod

  • 93 Reviews
  • Write a review

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

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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
+
Quantity Discount Prices apply when you buy multiples of the same item number.
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Total: $0.00
Quantity: 20

Details

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.


Product Instructions

Hot Rod Adjustable Truss Rods

Installation and adjustment instructions for Hot Rod Adjustable Truss Rod.

    • Item #
    • Weight
    • 2550
    • 0.197
    • 2551
    • 0.232
    • 2552
    • 0.296
    • 2553
    • 0.385

Ratings & Reviews

4mm Allen Nut Hot Rod Truss Rod

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  • Based on 93 Reviews
Displaying 8 of 10 1 2 3 4 5 6 7 8 9 10
Write a review

Well done!

By Mitchell Henderson from NS, Canada
(Customer's Reviews) Tuesday, April 26, 2011


Just a great piece, will be using it in the future for sure!

To the person who said:
"If you hit the strings very hard, you can hear some truss-rod rattle from the neck. I can't figure out, how to eliminate this."

The best way to fix this(as stated by stewmac, i think) Is put a bit of silicon caulking in the channel(ONLY A LITTLE!) then press the truss rod in, and glue the fretboard. The Silicon will keep it from rattling, and won't bind it up, either.

get the job done...

By smashedguitars from San Antonio, TX
(Customer's Reviews) Thursday, March 24, 2011


I've used these on about 10 guitars over the years... they work fine for me, but to be honest I prefer a traditional rod. just feel it's less invasive... I make 3 piece necks and sometimes use carbon fiber rods, so Ive never run into an issue that needed a correction the other way...

4mm hex

By Chad83 from Western Australia
(Customer's Reviews) Monday, March 21, 2011


Works great! i use these in all my builds.

Cheers.

King

By gabriel.v.savoie from Montr+¬al
(Customer's Reviews) Friday, March 04, 2011


It probably is the simplest truss rod to use in any guitar, acoustic or electric. It works very well, simple to use and reliable.

No pain in the neck!

By Trident Guitars from Berkley, Michigan
(Customer's Reviews) Thursday, March 03, 2011


I use these truss rods in all my guitar necks. They are easy to install and they work great. My necks are meaty and these truss rods can adjust them easily.

Good quality trussrod

By Ricardo Fonseca from SP, Brazil
(Customer's Reviews) Monday, February 28, 2011


I recommend this trussrod, works very well as expected. The 14 1/4" size is also appropriate for short scale electric guitar too, specially Gibson-like set neck guitars. Use the 18" just for long-scale guitars (25 1/2").

Good truss rods

By B Patrick from Conway, AR
(Customer's Reviews) Wednesday, February 23, 2011


I installed these into two 000 guitars. Easy installation and they are working fine.

Do the truss rod effect the sound?

By Mack Guitarworks from Hungary/Europe
(Customer's Reviews) Wednesday, February 16, 2011


Good truss rod for the beginner, because of the easy installation and routing. I built 3 of this design, but I like the original, gibson style much more. For my taste this design needs a very deep channel. If you hit the strings very hard, you can hear some truss-rod rattle from the neck. I can't figure out, how to eliminate this. I also don't like, that the fingerboard glue surface must be reduced, compared to the traditional method. I think, this effects the sound and the sustain.

I don't use any other brand now...

By B. Jesson from Chandler, AZ, USA
(Customer's Reviews) Wednesday, February 02, 2011


I used to use the martin style truss rods until I used the two-way hot rods. With the ability to adjust in both directions I don't have to worry about any curvature. The best part is if the rod gets damaged in anyway they are not too difficult to remove and replace if the neck and slot were built correctly. All my builds now use the Hot Rod truss.

Good thing I bought this one

By Steve Skinner from Kokomo, IN
(Customer's Reviews) Sunday, January 30, 2011


After finishing my last neck I noticed it has lost it's straightness in the direction away from string tension. By turning the nut counterclockwise I was able to take the curvature out of the neck in just a moment. First time I ever had a neck bow in that direction.

Displaying 8 of 10
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Shown on page 72 of our latest catalog.
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