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1998 Epiphone SG-400 Truss Rod Nut Size


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  • 2 weeks later...

Epiphones normally use a trussrod with 4mm socket permanently  attached to the end. This one looks like it may have been covered to the Gibson style that actually has a 5/16 nut on the end.

Gibson nut wrench.....


Edited by mihcmac
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  • 1 month later...
On 1/19/2022 at 2:33 PM, danieldlpgd said:

Hi, I need a socket for my 1998 Epiphone SG-400. Will a Truss rod wrench for Gibson work for this guitar or will I need a special size for Epiphone? I've been looking around for info but I can't find anything on it. Everything I find points back to using a allen wrench.


Epiphone Truss rod nut_Easy-Resize.com - Copy.jpg

It looks like the Czech made Epiphones used a Gibson style Nut. It is mentioned in the article linked below in the section talking about how the Czech versions differed from  the Asian built Epiphone Les Pauls and I wood have to assume the G-400's were made the same way.


Differences (from article.)

Since the Les Paul model was the most prevalent model made at the Bohemia factory, we will focus on some of the difference between a Czech Les Paul and the Asian Les Pauls. Please keep in mind that the differences in construction and hardware may not be consistent through all Bohemia Les Pauls. Later models seem to fall more in line with the Asian Les Paul models as far as hardware is concerned at least. 

Some of the differences between an Asian-made Epiphone Les Paul and a Czech-made Epiphone Les Paul are as follows: 

Neck Tenon:
Like the Japanses Les Paul, the Czech Les Paul had a long neck tenon, whereas the Asian-made version has a short tenon with exceptions for certain models.

Truss Rod:
The Czech Les Paul had a truss rod like that you would see on a Gibson guitar with a nut instead of a hex bolt.

It appears that many or all of the early model Czech Les Pauls came with what seems to be a Nashville-style bridge, as the diameter of the post is different than the Asian-made and ABR bridges. Many of these bridges are also stamped with "Made in Germany".

Again, the diameter, as well as the length, are different than the standard Asian-made tailpiece posts. These are also stamped with "Made in Germany".

Pickup Rings:
These seem to be a bit wider on the Czech Les Paul than the Asian-made Les Paul.

We arent sure exactly what type of pickup was used in the Czech LP other than that it is marked with an "X". Asian-made Epiphones from this time period are typically marked with the pickup model on the base plate, while others may not be. However, no others that we have seen have been marked with just an "X"

It seems that the wire used for the Czech models was thicker than the typical wiring used on common Epiphone guitars. 

This is the list of differences we have thus far. As we discover more differences and anomolies, we will list them accordingly. Again, please keep in mind that these differences may not have been consistent throughout the run of Les Paul guitars made at the Bohemia Musico-Delicia factory.

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