3 1/4-12 A194 2H Heavy Hex Nut Plain Finish


  • WEIGHT: 12.1188 lbs.
  • DIAM: 3.2500 (3 1/4)
  • GRADE: 2H
  • FINISH: Plain Finish
  • THREAD: 12

$128.73 /pc


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Product Description

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Heavy Hex Nut

If you’re looking for industrial fasteners that can stand the strain of heavy stress, our heavy hex nuts are just what the engineer ordered. These structural nuts can be used with threaded rod, cap screws and structural bolts, and Big Bolts has them in large diameters and 4 strength levels to meet different application demands.

Free returns 365 days a year – but you’ll want to keep these babies around for projects large and small! Log-In here to place your order.

- Dimensions per ASME B18.2.2
- Applications include: rotary, bushings, high vibration, off-road, trucks
- Physical properties per ASTM A194 Grade 2H; SAE J995 Grade 5; ASTM A563 Grade A; SAE J995 Grade 2
- Ideal for transportation, mining, heavy equipment, agriculture, alt energy industries, more

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You and Us


Chances are, as you're reading this, there is some dirt under your fingernails and perhaps scabs on your knuckles. You are the bold one who doesn't shy away from removing a few bolts and nuts to see what's going on. You're reading this because you want to make sure you are dealing with a company that you can rely on to supply the right parts when you need them. And, whatever big project you are working on now, is a stepping stone for a bigger one. If that assessment feels right, go ahead and let us know.


We exist for one reason: there are big machines out there that need big bolts and nuts to hold them together. We launched this company with a simple mission; to provide large diameter high quality fasteners with a great customer experience. We stand behind our products with integrity, knowledge and confidence and we stand behind our service with a commitment to you. If for any reason you aren't smiling when dealing with BigBolts.com, let us know.

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