So I'm working on this RG and wtf ... I open up the truss rod cover and the truss rod has no outer threading, the inside of the truss rod looks round (not stripped, round, smooth), and there's threading on the inside about the half inch down.

So it's smooth on the outside of the rod, circular and smooth on the inside, and about a half inch down on the inside there's threading.

Anyone got any tips on how to adjust this truss rod? Allen keys don't work and when I look online thinking maybe I'm missing a 7mm nut all the nuts for sale take threading on the outside of the truss rod to screw on which my truss rod doesn't have.

Any ideas?
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