4mm Allen Nut Hot Rod Truss Rod

4.5
  • 97 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 lbs. (0.09 kg)
    • 2551
    • 0.232 lbs. (0.11 kg)
    • 2552
    • 0.296 lbs. (0.13 kg)
    • 2553
    • 0.385 lbs. (0.17 kg)

Ratings & Reviews

4mm Allen Nut Hot Rod Truss Rod

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4.5
  • Based on 97 Reviews
Displaying 4 of 10 1 2 3 4 5 6 7 8 9 10
Write a review
5.0

Dual Action- Gotta love it

By
(Customer's Reviews)


Easy to install and peace of mind

4.0

Very nice truss rod

By
(Customer's Reviews)


Double action rods was always my favorite. My suggestion is that the brass collars should be replaced with a stronger material. Time will show it's strength.

5.0

Powerful rod

By
(Customer's Reviews)


I have found if I bed both brass ends with epoxy, the rods work/sound better.

4.0

Total adjustability

By
(Customer's Reviews)


I've been using this rod in all my guitars and they've worked great. I even was able to pull a neck back into position that had spent days floating around in it's case two years ago in the flood that hit the Nashville lockup where lots of touring musicians stored their instruments. I do think owners need to be advised not to try and straighten a neck just by turning the nut. Clamps are your best bet and just use the neck rod to hold things in position once you've got things where you want them. I'm afraid an uninformed owner might strip threads otherwise.

5.0

Great choice

By
(Customer's Reviews)


i am working to build a 7 strings LesPaul shaped guitar,For the Truss rod,I stopped my choice on 4mm which corresponded to my expectations, the build quality is excellent and the rod is adjusted to perfection, thanks StewMac.Mark Davis

3.0

True to its own design.

By
(Customer's Reviews)


This is not my first choice for truss rods. It's very deep, taking away more wood than neccessary, and the use of soft brass makes me nervous. Also because of the round top profile there is very little metal in contact with the fretboard. Still, it is a good execution of a design that does make a lot of sense.

5.0

truss rod

By
(Customer's Reviews)


well built and works fine

5.0

Hot rod

By
(Customer's Reviews)


Had never used this type before, was impressed with how well it works.

5.0

very nice truss rod

By
(Customer's Reviews)


I bought this double action truss rod for my first guitar build. I was very scared of installing a truss rod in general because of the whole cutting a deep slot in the neck and sanding through idea. It just terrified me. I wanted to make sure the rod could help adjust for a bow in either direction an i had never built a guitar. I was extremely pleased as well as surprised with the quality of the rod, and the ease in which it went in. I bought the special router bit made for the install and it went perfectly. Thank you stewmac!

5.0

so far so good

By
(Customer's Reviews)


I bought this hotrod for the sole purpose of flipping it upside down and making it a headstock adjust on Strat and Tele style necks. so far so good

Displaying 4 of 10
1 2 3 4 5 6 7 8 9 10


Shown on page 72 of our latest catalog.
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