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emilygreen
Hi all,
Has anyone replaced their turnbuckles lately and knows the precise size to order? My turnbuckles are original and the male piece (pin with threads) is 3/8 in. I'm certain a turnbuckle made to fit 3/8 pin and 1/4 in wire (my shrouds) is correct but I'm confused about thread count. Is threading universal for a 3/8 in turnbuckle ? Lastly are original turnbuckles chromed bronze? I am getting new turnbuckle bodies only, and don't want to have some strange metal reaction by getting the wrong material ....
I just brought my boat down from the Champlain canal and am in the mid Hudson River waiting for my mast to be stepped. Need new turnbuckles before continuing on south. Any timely information most appreciated thank you !!!!!!!
414
Hi Emily,
My turnbuckles are 3/8- 24 thread. I have both closed turnbuckles that appear to be original and an open one that is not original - but all are 3/8-24. My shrouds diameter is .200" which is slightly under 1/4" but I think they are the same as what you've got. As for material type on the turnbuckles- I'm not sure. They are Vaguely magnetic so that would suggest 300 series (probably 316) stainless. But I really am not sure.
Hope that helps!
-Ben
Clean Ocean
I hope your stepping was casual. And I know This isn't exactly timely but the information about turnbuckles is timeless.
Thread count on typical domestic TBs is standard; National Fine (NF). Some European products use metric sizing so be sure to pay attention to what you're buying.
The open body turnbuckle is chromed bronze and studs are Typically stainless steel. This combination prevents the threads from getting fouled which can happen easily with stainless on stainless. Often TBs are oriented so that a counter clockwise turn adds tension but the important thing is that you orient them all the same.
I'm sure your wires aren't original, but if they are that's more of a risk than old turnbuckles. You should seriously consider new wire if so. You can tell if a wire is shot by how it lays when free of tension. It should lie straight, not wavy. Any damaged or broken strands also warrant retirement of a wire.
Remember, a rigging plan is designed around a safety factor, not simply "ultimate breaking strength". Any compromise to the wire's integrity reduces the safety factor and leaves a vessel more vulnerable to rigging failure.
ebb
https://theriggingco.com/2014/10/22/how-to-adjust-a-turnbuckle/
is a short tutorial on what's current, and shippy. I think turnbuckles
should be installed in what is common practice. But that still may be
confusing. TRC says that practice is now "lefty-tighty --righty-loosey".
My interpretation of that is: when turnbuckle is toggled to the
chainplate, we turn the body of the buckle counter clockwise to
shorten the shroud/stay. (as I understand.)
If you google >Hayn turnbuckle< you can find current lists of standard
American measure and standard Euro metric. Clevis pins, which
indicate the size of turnbuckle are generally twice the diameter of
the cable.
Original Ariel/Commander were 3/8 bottles with swaged 3/16 cable.
If your rig has bottle screws and swage fittings, they should
immediately be changed. By rights, if you did not replace the rig
yourself, you really should replace it all. With a complete
examination of all tangs, masthead/crane, spreaders and base.
Good Luck.:D
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Turnbuckles are popularly used in the lifting and rigging industry where tensioning lines are imperative. These items work to increase the strength of your lines by applying them in a straightforward process. However, choosing the right turnbuckle for the job will ensure it functions properly and safely for years to come.
Learn more about what turnbuckles are, the different types of these devices, and how to use them in specific applications and jobs.
A turnbuckle is a device commonly used to take up slack and adjust the tension or length of various ropes, cables, wires, and other lines. Turnbuckles are versatile and can be used for a wide range of applications, from securing loads to tightening fence wire, and are commonly found in architectural, rigging, and marine applications.
Each turnbuckle consists of two end fittings connected to a metal frame and a central threaded rod that rotates to increase or decrease the tension between the end fittings. These hook onto an anchor point on one end and the line assembly on the other end and pull together to tighten the slack of the rope assembly without twisting the line.
Turnbuckles come in various materials, styles, end fittings, and sizes to accommodate your needs. These devices come in galvanized or stainless steel, and can sometimes consist of a pipe casing to cover and protect the internal threads.
U.S. Cargo Control offers different combinations of end fittings for turnbuckles that you can choose from:
Want more information on bolt type strain clamps? Feel free to contact us.
You can also find different branded turnbuckles such as our Crosby® and European-made Van Beest devices that are high quality and tested for enhanced performance.
Whether you realize it or not, turnbuckles are used all around you. With so many different applications to use them for, it can be hard to spot them. We narrowed down a list of 5 common applications for turnbuckles:
Turnbuckles keep tension for tensile structures like large buildings and stand-alone towers. Steel cell phone towers, for example, utilize turnbuckles that keep wire cable taught and pulled in various directions in order to keep the tower standing. Tensioning tall structures is a common practice when they don't have enough base support to keep them standing.
If you ever went sail boating before, then you may recall seeing the rigging system utilize turnbuckles. This is a common method that makes it easy to tighten the ropes or release the slack to adjust the direction of the sails. Another common item, snatch blocks, also work to keep tensions tight in a sail boat rigging assembly, and commonly work with turnbuckles to keep the ropes tight.
Pipe-casing turnbuckles are used for fence lines. Keeping these lines tight and upright is imperative, especially for farmers wanting animals fenced in pastures or other open fields. Turnbuckles make it easy to keep wire rope taught and able to withstand heavy forces.
Heavy-duty turnbuckles also help support suspension bridges! Since these structures rely on tensioning, utilizing tools like turnbuckles make it easier to adjust the cable to the certain tightness that they need to be at.
Lastly, turnbuckles are very prevalent throughout the sports entertainment industry! These devices tighten ropes for boxing and wrestling rings, with the corners covered up by protective padding. Production workers use turnbuckles to tension the ropes to their appropriate tightness to keep competitors safe during their matches.
When using turnbuckles, you work against some pretty serious tensioning forces. Make sure you use these devices within their rated capacities and secure the end fittings to prevent any snapback. Here are a few tips to keep in mind when operating turnbuckles:
If you need you questions answered on how to safely set up your configuration, please contact our product experts today before you attempt your setup.
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