Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo Auction Link (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Farmall & IHC Tractors Discussion Forum
:

Oversize Hex Nuts

Welcome Guest, Log in or Register
Author 
Pale Rider

06-24-2007 22:21:52




Report to Moderator

In removing parts from my F-20 and F-12 I occasionally find that I either destroy a hex nut or it is too far rusted to have any reliable wrench surface to begin with. I could of course just replace it with a modern nut but I find that the nuts used were typically, if mysteriously, oversized by one wrench size. For example a hex nut for a 3/8's bolt would require a 5/8's wrench to remove as opposed to a 9/16's wrench as one would expect for modern hex nuts. This pattern seems to run pretty true with the other size bolts as well. If this were not enough, I find that many of these old hex nuts that are in good shape seem to have been punched from some sort of rough plate steel still having some sort of milling marks running accross their surface, and once in awhile I even find one that was not drilled on center but is whimsically eccentric in it's hole location. Does anyone know of a source for what I assume would have to be old stock International hex nuts? Or failing that, a source for hex nuts that would be oversized with regard to the wrench required for their removal?

[Log in to Reply]   [No Email]
don g

07-02-2007 19:03:38




Report to Moderator
 Re: Oversize Hex Nuts in reply to Pale Rider, 06-24-2007 22:21:52  
another reason the oversized bolts and nuts are used in steel erection eliminates need for flat washers so maybe that is the idea for the tractor as well



[Log in to Reply]  [No Email]
Haas

06-25-2007 18:23:26




Report to Moderator
 Re: Oversize Hex Nuts in reply to Pale Rider, 06-24-2007 22:21:52  
I believe these are called "heavy hex" nuts. I think they are used most often in structural steel applications. I don't know why. However, I find them quite a bit on the IH tractors and equipment. You won't find them in most hardware stores. I think you'll have to go to a fastener supply house, or to a commercial hardware wholesale house that supplies fasteners and hardware for industrial and commercial operations.

[Log in to Reply]  [No Email]
Nat 2

06-25-2007 07:44:43




Report to Moderator
 Re: Oversize Hex Nuts in reply to Pale Rider, 06-24-2007 22:21:52  
The REAL reason for the oversize nuts is so you only need one set of wrenches to remove a bolt.



[Log in to Reply]  [No Email]
RustyFarmall

06-25-2007 05:41:58




Report to Moderator
 Re: Oversize Hex Nuts in reply to Pale Rider, 06-24-2007 22:21:52  
Those over-sized nuts are called heavy duty nuts. They were used because of the greater surface contact area which spreads the load out and results in a stronger connection. You should be able to find them at most farm machinery dealerships. A GOOD hardware store will also have them. I have never found them at ANY farm supply store. Another choice might be McMaster-Carr or possibly Fastenal.



[Log in to Reply]  [No Email]
Fawteen

06-25-2007 01:19:36




Report to Moderator
 Re: Oversize Hex Nuts in reply to Pale Rider, 06-24-2007 22:21:52  
At work, we use a lot of 3/8 to 3/4 hardware, and can get two sizes of nuts for each, "regular" (a 9/16 nut for a 3/8 bolt) and what I assume is "heavy duty" or the next size up (5/8 for a 3/8 bolt).

In this case it's SS stuff, but I'd assume it's also available in regulart steel. We get ours from McMaster-Carr.



[Log in to Reply]  [No Email]
Chris(WA)

06-25-2007 01:15:52




Report to Moderator
 Re: Oversize Hex Nuts in reply to Pale Rider, 06-24-2007 22:21:52  
There is a Heavy nut sold by hardware supply stores that is a wrench size larger than regular.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy