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rolled threads and turnbuckle
3

rolled threads and turnbuckle

rolled threads and turnbuckle

(OP)
I'm trying to determine if there is a standard stocked item that is a two ended stud with Lh and rh opposing rolled threads. preferably with a wrench useable surface in the middle.  Set up charges to produce the onezy, twozies that I need are too much.

RE: rolled threads and turnbuckle

If you need a rod with a flat or hex center an opposite threads (male) on the ends most roll thread shops should be able to make these in a small number.  This is fairly standard tooling for some clamping systems.

= = = = = = = = = = = = = = = = = = = =
Rust never sleeps
Neither should your protection
http://www.trent-tube.com/contact/Tech_Assist.cfm

RE: rolled threads and turnbuckle

2
What you are asking for is the opposite to a sleeve nut which is readily available for steel construction.

Perhaps you could get two lengths of threaded rod and insert those into a sleeve nut.


http://www.portlandbolt.com/products/nuts/sleeve_nuts.html


RE: rolled threads and turnbuckle

(OP)
Cory:  Thanks for the note on McMaster catalog.  Their item is exactly what I was looking for except it is 6061-T6 and  I forgot to mention that I was needing grade 5 or grade 8 steel.  I've e-mailed McMaster for possible source.

RE: rolled threads and turnbuckle

(OP)
EdStainless:  I got a quote for a small number of these things from one shop and the set up charge was $500.  Ouch.

RE: rolled threads and turnbuckle

see cat. page 3093

RE: rolled threads and turnbuckle

Sorry, a) that's the McMaster catalog, specifically, and b) those don't have the hex in the center.

RE: rolled threads and turnbuckle

(OP)
btrueblood.  Yikes what McMaster catalog are you looking at?  and what is the description?  My page 3093 has quick release pins.
Also recent quote from another shop was $198 each for 10..
Thanks

RE: rolled threads and turnbuckle

Huh.  I was looking at the online version, www.mcmaster.com - type 3093 into the search field.

RE: rolled threads and turnbuckle

For structural applications you also must specify the grade of turnbuckle you need. In Australia you can get Commercial, and Grades G, P, S. To match the strength of a same size mild steel bar (fy=250 MPa) I would specify Grade P. You must make sure that the rod will yield before you get failure in the turnbuckle.

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