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Finished Hex Nuts

Finished Hex Nuts

Hex nuts are essential components in countless applications. They offer secure fastening solutions for machinery, construction, & other critical systems. A finished hex nut is a six-sided fastener with internal threads. These are used to secure parts together with a bolt or screw. At Nickel Systems, we specialize in providing high-quality finished hex nuts crafted to meet stringent industry standards. Our extensive inventory includes hex nuts in a variety of materials, centered around exotic alloys like Inconel, Hastelloy, Duplex Stainless Steel, & Monel. They are designed to withstand extreme environments. Whether you require standard sizes or custom specifications, our hex nuts deliver reliable performance across diverse industries including oil & gas, chemical processing, & aerospace. By choosing Nickel Systems, you’re investing in unparalleled durability & precision-engineered products backed by decades of expertise.

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Specifications

Finished hex nuts come in various sizes & strict specifications. View Nickel Systems’ dimensions, specifications, & technical data for finished hex nuts below.

Download the Finished Hex Nut Dimensioning Table

Dimensions

An orthographic dimensioning picture of a finished hex nut

Nominal Size
Basic Major Diameter of Thread		 F G H
Width Across Flats Width Across Corners Thickness Hex Nuts
Min Max Min Max Min Max
1/4 0.2500 0.428 0.438 0.488 0.505 0.212 0.226
5/16 0.3125 0.489 0.500 0.557 0.577 0.258 0.273
3/8 0.3750 0.551 0.563 0.628 0.650 0.320 0.337
7/16 0.4375 0.675 0.688 0.768 0.794 0.365 0.385
1/2 0.5000 0.736 0.750 0.840 0.866 0.427 0.448
9/16 0.5625 0.861 0.875 0.982 1.010 0.473 0.496
5/8 0.6250 0.922 0.938 1.051 1.083 0.535 0.559
3/4 0.7500 1.088 1.125 1.240 1.299 0.617 0.665
7/8 0.8750 1.269 1.312 1.447 1.516 0.724 0.776
1 1.0000 1.450 1.500 1.653 1.732 0.831 0.887
1-1/8 1.1250 1.631 1.688 1.859 1.949 0.939 0.999
1-1/4 1.2500 1.812 1.875 2.066 2.165 1.030 1.094
1-3/8 1.3750 1.994 2.062 2.273 2.382 1.138 1.206
1-1/2 1.5000 2.175 2.250 2.480 2.598 1.245 1.317
1-5/8 1.6250 2.35 2.43 2.679 2.805 1.364 1.416
1-3/4 1.7500 2.538 2.625 2.893 3.031 1.460 1.540
1-7/8 1.8750 2.722 2.813 3.103 3.247 1.567 1.651
2 2.0000 2.900 3.0000 3.306 3.464 1.675 1.763
2-1/4 2.2500 3.263 3.375 3.719 3.897 1.890 1.986
2-1/2 2.500 3.625 3.750 4.133 4.330 2.105 2.209
2-3/4 2.7500 3.988 4.125 4.546 4.763 2.319 2.431
3 3.000 4.350 4.500 4.959 5.196 2.534 2.654
3-1/4 3.2500 4.713 4.875 5.373 5.629 2.749 2.877
3-1/2 3.500 5.075 5.250 5.786 6.062 2.964 3.100
3-3/4 3.7500 5.438 5.625 6.199 6.495 3.178 3.322
4 4.0000 5.800 6.000 6.612 6.928 3.393 3.545

Finished Hex Nut Specifications

  • STANDARD (ASME/ANSI)
    • ASME B18.2.2 – 2010
  • METRIC (IFI)
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In-stock

Finished Hex Nuts Available Materials

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Product Overview

Below is a description of a finished hex nut, a diagram of the part along with its applications, industries, and commonly used exotic alloys.

What is a Finished Hex Nut

A finished hex nut is a hexagonal shaped fastener that is internally threaded and designed to be mated with a bolt or screw.

Other Names:

  • Hex Nut
  • Standard Hex Nut
  • Regular Hex Nut
  • Finished Nut
  • Machine Screw Nut
  • Hexagon Nut

Check out our parts diagram:

a parts picture of a finished hex nut

Finished Hex Nuts Vs. Heavy Hex Nuts

Finished hex nuts are different than heavy hex nuts in size & strength. Check out all of the similarities & differences in our blog post ~ Finished Hex Nuts Vs. Heavy Hex Nuts.

Applications & Industries

Finished hex nuts are a versatile fastener that are used across a diverse spectrum of industries & applications. Check out some examples below.

Aerospace Applications

Marine & Subsea Engineering

Chemical & Petrochemical Plants

  • Finished hex nuts fasten reactors, pipe flanges, and vessels in corrosive chemical environments.
  • Exotic alloys: Hastelloy C-276, Alloy 20, & Incoloy 825
  • Industries: Chemical processing, refineries, & Pharmaceutical production

Power Generation (Nuclear, Thermal, & Hydro)

  • Finished hex nuts bolt components in turbines, reactors, and high-temperature piping systems.
  • Exotic alloys: Inconel 625, A-286
  • Industries: Nuclear power plants, high-efficiency thermal stations, & renewable energy

Medical & Biotech Equipment

  • Finished hex nuts fasten parts in surgical instruments, implantable devices, & lab equipment
  • Exotic alloys: Titanium Grade 2, Grade 5, & Stainless 316L
  • Industries: Medical device manufacturing, biotechnology, & hospital surgical tools

Electronics & Semiconductor Manufacturing

Nickel Systems has a large stock in various types of exotic alloy socket head shoulder screws. Begin your quote today.

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Sample Products

Check out some NSI finished hex nuts sample products.

Finished Hex Nut 5/8″ Diameter Nitronic® 60 Material

 

a picture of a finished hex nut in n60 material

Finished Hex Nut 3/4″ Diameter Monel® 400 Material

 

a picture of a monel 400 finished hex nut

Finished Hex Nut 3/8″ Diameter Hastelloy® C276 Material

 

a picture of a c276 material finished hex nut

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Three Blue Hexagons Are Lined Up On A White Background Three Blue Hexagons Are Lined Up On A White Background

Related Blogs

Check out our related blog posts on finished hex nuts.

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Finished Hex Nus vs Heavy Hex Nuts
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Related Products

Check out Nickel Systems’ related products for finished hex nuts.

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Industries We Serve

Nickel Systems provides high quality exotic grade materials that hold up in the toughest, most severe heat and corrosive environments. With our large inventory of specialty fasteners in stock, we are always ready to answer the call to serve the most challenging applications.

Nickel Systems maintains an inventory of hex nuts in Hastelloy® (Alloys C276, C22, B2, B3), Carpenter® 20 (Alloy 20), Inconel® 600 (Alloy 600), AL6XN®, Duplex 2205, Nitronic® 60, 317L Stainless, Nickel 200, 330 Stainless, 904L, 18-8 Stainless and 316 Stainless in stock at all times.

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Air Pollution Control
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Chemical Processing
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Electronics & Semi-conductors
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Power Generation
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Water Systems
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Pulp & Paper Mills
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Oil & Gas
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Pumps & Seals
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Aerospace
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Valves
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Glass Manufacturing

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