Nickel Systems, Inc.-  Specialty Fastener Distributor
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Nuts

Regular Finished Hex Nuts:
Finished hex nuts are the most common type of nut. Finished refers to the dimensional standard. Except for some smaller sizes, the width across the flats of the hex is one-and-a-half times the nominal diameter.

Click here for more information about regular finished hex nuts.

 

 

Heavy Hex Nuts:
Heavy hex nuts are used when more "beef" is needed than in standard hex nuts. Often heavy hex nuts are used in high temperature and high pressure applications, particularly those involving flanged joints. Generally the width across the flats is 1/8 of an inch larger than common hex nuts.

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Regular Finished Hex Jam Nuts:
Jam nuts, sometimes referred to as thin nuts, are approximately 65% as thick as a standard hex nut. They were originally used to jam against another jam or full height nut and provide a locking feature.

Click here for more information about regular finished hex jam nuts.

 

 

Heavy Hex Jam Nuts:
Heavy hex jam nuts are used where a large bearing surface is required and minimal clearance or thread engagement is available.

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Acorn & Cap Nuts:
Acorn nuts and cap nuts combine the hexagonal wrenching surface of standard nuts with a dome, the acorn or cap, is used to cover external threads that would be otherwise exposed.

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Lock Nuts:
Locknuts are used where there is a significant probability that a nut will loosen over time. Because of vibration or frequent temperature changes. When the danger of corrosion is not too severe and 18-8 or 316 Stainless is adequate for fastening we would offer Nylon Insert Locknuts.

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*Nitronic® is a registered trademark of Armco, Inc., *Hastelloy® is a registered trade mark of Haynes,
*Carpenter® 20 is a registered trade mark of Carpenter Technologies,
*Inconel® is a registered trade mark of Inco Alloys International, *254 SMO® is a registered trademark of Avesta Sheffield

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