truss rod weight

[vtpcnk]

any idea how much warmoth's single and double truss rods weigh?

 

[vtpcnk]

i had enquired with musikraft about their truss rods. they told me that the rod on their single piece (single or dual acting) neck weighs 2 oz, while the rod on their double piece necks weigh 3.9 ok.

is this the same rod? or a different one  based on single or double piece construction? and why weight should be different based on the construction? any idea?

 

[bagman67]

The weight varies by construction type because the vintage style rod is a single rod with a square metal washer to anchor the end with the screwhead, and a separate immobile anchor at the other end, while the modern one has two rods that interact - the threaded rod is essentially used to curve or straighten the other rod by applying or releasing tension on the square rod.


http://www.warmoth.com/Truss-Rods-C46.aspx


You can compare the different images, although they're not very good.


Here is a different double-action truss rod from the one Warmoth sells, but the image better depicts what's happening:

And here is a vintage rod: