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Home : Truss rods : Adjustable truss rods : 4mm Allen Nut Hot Rod Truss Rod

4mm Allen Nut Hot Rod Truss Rod

Read 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.

See details below

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4mm Allen Nut Hot Rod Truss Rod
Item# Description In stock Price Quantity
2550 12-1/4" overall length Yes
6 or more $13.64  
12 or more $12.38  

2551 14-1/4" overall length Yes
6 or more $13.91  
12 or more $12.67  

2552 18" overall length Yes
6 or more $14.84  
12 or more $13.60  

2553 24" overall length Yes
6 or more $18.96  
12 or more $17.74  

Quantity prices apply to multiples of the same item number Selected currency  


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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)

Resonator guitar
Acoustic guitar with 12th fret at the body
Acoustic guitar with 14th fret at the body
Electric guitar

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

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 Ratings and reviews
4mm Allen Nut Hot Rod Truss Rod
4mm Allen Nut Hot Rod Truss Rod
4.5 out of 5 stars
Based on 93 ratings Write a Review
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Displaying 61 – 70 < 1  ...  6  7  8  ...  10 >
5 7-15-2011
4mm Allen Nut Hot Rod

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

DiLorenzo  los osos ca. Read my reviews (3)
Customer supplied image for review
4 7-13-2011
Good truss rod

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

Alan Campion  France
Customer supplied image for review
5 7-10-2011
I love this rod

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

Goodson Guitars  Odessa, Tx Read my reviews (18)
5 5-29-2011

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

Cristiano Bochese  Verona, Italy Read my reviews (3)
4 5-21-2011
4mm allen nut Hot Rod

Well the order came fast, and with it the router bit and other toys. Fits perfectly and I can't wait to make sure it works just as well! I'm in the middle of my first build, so I'll have to wait until then to give it the 5 stars I believe it will earn.

Panhead  Bridgewater, NJ
5 5-13-2011
Easy To Install

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.

Clell  Dallas, TX Read my reviews (21)
5 5-06-2011
Spoke Wheel truss rods are great!

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...

Matt Phillips  West Hills, Ca
5 5-05-2011
The perfect truss rod for that special build!

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!

Eric C.  Las Vegas,Nv. Read my reviews (16)
Customer supplied image for review
5 4-26-2011
Well done!

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.

Mitchell Henderson  NS, Canada Read my reviews (3)
4 3-24-2011
get the job done...

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...

smashedguitars  San Antonio, TX Read my reviews (18)
Displaying 61 – 70 < 1  ...  6  7  8  ...  10 > /\ Top of Reviews

Shown on page 72 of our latest catalog.

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