Gibson Truss Rod Nut

Guitar truss rod wrench luthier tool for 8mm 5 16 gibson nut brand new 3 9 out of 5 stars 3 9 16 9.

Gibson truss rod nut.

Gibson started using the long taper nuts in the 1950s and continues to use them today. The truss rod adjustment on a gibson les paul is done using its brass nut at the headstock end of the neck located under the truss rod cover funnily enough. 5 16 hex brass 5 16 length 10 32 thread. 16 futheda guitar truss rod wrench luthier screwdriver for taylor guitars silver 4 3 out of 5 stars 42.

The short taper leaves more metal for the hex sides which gives wrenches a good grip. Edited september 11 2019 by mihcmac. Your guitar must be tuned to pitch using your preferred gauge of strings when you do this and under tension or it simply won t be correct. Sometimes the truss rod can be really stuck requiring you to use a small adjustable wrench to turn the hex wrench.

Gibson don t tend to mask the truss rod cavity terribly well before spraying so you can see that some of the nuts in these images have lacquer on them even over the ground away portion. You can use a 5 16 socket but i would recommend one of those gibson truss rod wrenches that looks like a little corn cob pipe but is usually black in color sometimes chrome. If you loosen the truss rod too much releasing it from the captive nut close to fret 20 the whole rod can come all the way out. Gibson used short taper truss rod nuts from the late teens into the early 1950s.

It has thin walls that make it easy to get in the truss rod cutout of the peghead. Interestingly these nuts sit lower than the headstock facing so it looks like the damage occurred as the face of the headstock was being prepped to receive the overlaid facing.