What you are asking about are called heavy hex nuts. For a 3/8-24 size the hex is usually 11/16. I think the link below will take you to the right page but if not look at Mcmaster Carr's main site, click on nuts, and then on the size and thread your looking for and it'll bring up all of comparibles they carry.
Like another post suggested you would probably be better off to go with a standard nut with a hardened washer under it. Many heads are put on that way from the factory so it's not an uncommon thing to do. One reason I suggest this is with a heavy hex or a flange nut the torque required to get one of the nuts with a larger surface area required as 'tight' as a standard nut will be increased due to the larger surface area of the nut contacting the head and the extra amount of resistance having to be overcome to make up for it. It may only be a few ft-lbs of torque difference to overcome the extra resistance but it will be there to contend with.
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 ]
Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
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.
