Big Lot Of Guitar Truss Rods - Possibly Stewmac.
These were given to me but aren't sizes I will ever use. They look like the Stewmac Double action truss rods but I'm not sure if they are.
The Red ones take a 4mm allen key, the black ones take a 1/8" Allen Key.
They all have some tarnish on them but seem to function correctly and don't appear that any of them were ever installed. There is some residue from some rubber bands and tape that were on them.
It appears they are made to function with the screw on the bottom, away from the fingerboard. They appear to be well made in the Stewmac style. The heads to receive the allen wrenches appear to be silver soldered on.
2 Red measure at 17.25"
1 Red measures at 17 3/8"
1 Black measures at 7.25"
3 black measure at 9.5"
5 Black measure at 13"
9 Black measure at 15.75"
16 Black Measure 14"