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4mm Allen Nut Hot Rod Truss Rod

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

Item # 2550
In stock, ready to ship!

$16.58

6 or more $14.42
12 or more $13.60
+

14-1/4" overall length

Item # 2551
In stock, ready to ship!

$16.79

6 or more $14.61
12 or more $13.77
+

18" overall length

Item # 2552
In stock, ready to ship!

$17.84

6 or more $15.52
12 or more $14.63
+

24" overall length

Item # 2553
In stock, ready to ship!

$22.04

6 or more $19.17
12 or more $18.07
+
 
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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)

Customer Reviews

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4.5
  • 4.47 average rating from 127 reviews
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4.0

Works fine

By

Verified Buyer


First time building a guitar and first truss rod I've ever even held so I don't know much about the quality compared to other makes. I inserted the rod into the routed channel and after making an access hole in the headstock, I tightened the fitting and could clearly see the rod bowing upward. So I would say that it works as it should.

5.0

Great truss rods.

By

Verified Buyer


I have been building since 1976. These are great for any instrument. I especially like them for my banjo necks. Easy to install and they do what they need to do.

5.0

The Best

By

Verified Buyer


The only truss rods I use and have for many years. Never had any problems with them and they help with getting the perfect setup.

5.0

Great Product

By

Verified Buyer


I use these in all of my builds.I have never had a problem.

5.0

Love these Trussrods!

By

Verified Buyer


I use these two way rods in all my builds. Easy to install and they work great. No problems ever.

5.0

Purchase

By

Verified Buyer


Smooth transaction. Fast delivery.

5.0

Fast turnaround & great customer service

By

Verified Buyer


Every time I've shopped with StewMac, it's a great experience. If I have problems or questions, I can email them and respond typically within one day. Things get shipped out really quickly, so I'm not stuck waiting long for my supplies.

4.0

Good T/rod

By

Verified Buyer


very easy to install. I used many of these truss rods, only had to tweak one or two during installation

5.0

Outstanding Truss Rod

By

Verified Buyer


I have used many Hot Rods in my builds in recent years. They are very high quality and very effective when installed correctly. I have never received a bad one but always test them before installation to make sure the threaded parts are working and that the brazing is solid. Clamp the end in a soft jaw vise and turn the adjuster to make sure the rod curves up and back. I recommend using the available router bit and following the included instructions for trouble free operation.

5.0

Best yet

By

Verified Buyer


I use these in every bass neck I build. Easy to install and adjust. I highly recommend them.

Showing 10 of 127 Read more reviews >>


StewMac PDF Catalog, page 76 See 4mm Allen Nut Hot Rod Truss Rod
on page 76 of our StewMac Digital Catalog



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