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  • As part of our premium line of hex nut products, National Bolt & Nut offers a wide range of heavy hex nuts in various grades, finishes, threads, and sizes to meet your unique application requirements.
  • Meeting ANSI B18.2.2 dimensional requirements, heavy hex nuts are popular for their durability and are designed to undergo the most demanding industrial applications or extreme conditions. With our premium heavy hex nuts, nylon inserts and nuts with patches are also available and can be requested through our information request form.
  • Other materials and finishes available. For further information, call or send an information request.
Heavy Hex Nuts
Unit of Measure
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Item #

Thread Size

Grade/Class

Finish

Thread Style

pn-4673 N/A 1 1/2-6 N/A Grade 5 N/A Plain N/A Coarse Thread
pn-4674 N/A 1 5/8-5 1/2 N/A Grade 5 N/A Plain N/A Coarse Thread
pn-4675 N/A 1 3/4-5 N/A Grade 5 N/A Plain N/A Coarse Thread
pn-4676 N/A 2-4 1/2 N/A Grade 5 N/A Plain N/A Coarse Thread
pn-4677 N/A 3-4 N/A Grade 5 N/A Plain N/A Coarse Thread
pn-4678 N/A 1/4-20 N/A N/A Plain N/A Coarse Thread
pn-4679 N/A 5/16-18 N/A N/A Plain N/A Coarse Thread
pn-4680 N/A 3/8-16 N/A N/A Plain N/A Coarse Thread
pn-4681 N/A 7/16-14 N/A N/A Plain N/A Coarse Thread
pn-4682 N/A 1/2-13 N/A N/A Plain N/A Coarse Thread
pn-4683 N/A 5/8-11 N/A N/A Plain N/A Coarse Thread
pn-4684 N/A 3/4-10 N/A N/A Plain N/A Coarse Thread
pn-4685 N/A 7/8-9 N/A N/A Plain N/A Coarse Thread
pn-4686 N/A 1-8 N/A N/A Plain N/A Coarse Thread
pn-4687 N/A 1 1/8-7 N/A N/A Plain N/A Coarse Thread
pn-4688 N/A 1 1/4-7 N/A N/A Plain N/A Coarse Thread
pn-4689 N/A 1 3/8-6 N/A N/A Plain N/A Coarse Thread
pn-4690 N/A 1 1/2-6 N/A N/A Plain N/A Coarse Thread
pn-4691 N/A 1 5/8-5 1/2 N/A N/A Plain N/A Coarse Thread
pn-4692 N/A 1 3/4-5 N/A N/A Plain N/A Coarse Thread
pn-4693 N/A 2-4 1/2 N/A N/A Plain N/A Coarse Thread
pn-4694 N/A 2 1/4-4 1/2 N/A N/A Plain N/A Coarse Thread
pn-4695 N/A 2 1/2-4 N/A N/A Plain N/A Coarse Thread
Unit of Measure
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