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A Confussed Nut

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Old Feb 21, 2005 | 01:16 AM
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A Confussed Nut

I can't belive I forgot this, but is a threaded bolt/nut right-hand or left-hand thread? I need to get a few 1/4-20 nuts that tighten the opposite direction of your standard nut, for a project.
 
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Old Feb 21, 2005 | 01:33 AM
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Originally Posted by sierraben
I can't belive I forgot this, but is a threaded bolt/nut right-hand or left-hand thread? I need to get a few 1/4-20 nuts that tighten the opposite direction of your standard nut, for a project.
Almost all are right hand but I am sure somewhere has a nut and bolt that turns left hand threads.
 
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Old Feb 21, 2005 | 02:48 AM
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Moved to proper forum.

All standard fasteners are right hand threads. Some specialty fasteners are left hand thread.
 
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Old Feb 21, 2005 | 03:15 AM
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Thanks guys- I wasn't sure if a reverse thread was called a left-hand thread.
 
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Old Feb 21, 2005 | 06:06 AM
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Originally Posted by sierraben
Thanks guys- I wasn't sure if a reverse thread was called a left-hand thread.
McMaster-Carr and Grainger are good sources for such things.
 
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Old Feb 21, 2005 | 06:55 AM
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Always remember, righty tighty, leftyt loosey.
 
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Old Feb 21, 2005 | 08:10 AM
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There used to be quite a few trucks that had right threaded lug nuts on one side and left on the other. I don't think I've seen any since the 60's or early 70's though.
 
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Old Feb 21, 2005 | 02:37 PM
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Ian F--Totally forgot about Grainger- Thanks

mistakenID--That's right. I used to have a 58 Dodge pickup where the wheel lug nuts on one side were left-hand threads.

How many of us tried to loosen lug nuts that were l-h threads?
 
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Old Feb 21, 2005 | 06:47 PM
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Big rigs still have left handed threads on the drivers side..Same with coach busses & RV's... If the lug nuts were hand tight (drivers side) the motion of the wheel would keep them tight.. I know it sounds hokie, but its supposed to work...

By the way, my father tried to remove the drivers side lug nuts the wrong way....thats how i learned about L-H thread usage....
 
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Old Feb 22, 2005 | 08:16 PM
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Being a left dominant person, I am in my right (brained) mind. Although a few people wonder that. What's really bad is one job I deal with mostly normal stuff, the other job I deal with that has a lot of stuff that one part is normal threads and another part is left hand threads. It always takes me a few minutes to get into the right frame of mind so I don't break something.
 
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Old Feb 22, 2005 | 09:02 PM
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My 84 f-250 has Left hand thread nuts on one side
Andy
 
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Old Feb 24, 2005 | 08:26 AM
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Sierraben:

To answer your last question. Yes, left-handed threaded fasteners are often called reverse thread bolts/nuts.

Runum:

Your little saying is only correct for right handed threaded fasteners. It's bass-ackwards for left hand threaded fasteners.
 
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Old May 15, 2005 | 08:26 PM
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Leftytighty, Righty loosey?
 
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Old May 15, 2005 | 11:50 PM
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Originally Posted by deano512
Big rigs still have left handed threads on the drivers side..Same with coach busses & RV's... If the lug nuts were hand tight (drivers side) the motion of the wheel would keep them tight.. I know it sounds hokie, but its supposed to work...

.
that just isn't true. its true for single nut hubs and knockoff, but not patterned lug nuts. there were some holdouts that believed it regardless of physics. it has also been used for conformity of allways pulling the top of the wrench towards the front of the vehicle.
 

Last edited by oldhalftons; May 15, 2005 at 11:53 PM.
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