Nail Size Chart

Nail Size Chart
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Standard nail sizes refer to the dimensions of nails, including their length and diameter. The size of a nail is typically expressed in inches or millimeters and is determined by the specific application and the materials being fastened.

In the United States, common nail sizes are expressed in penny sizes, with the length of the nail being represented by the number and the diameter being represented by the word “penny.” For example, a common 16d nail is 3.5″ long with a 11/32″ head diameter and a 8 gauge shank. Other common penny sizes include 6d, 8d, 10d, 12d, and 20d.

In addition to penny sizes, nails are also available in metric sizes, which are expressed in millimeters. Common metric nail sizes include 25mm, 32mm, 40mm, 50mm, and 63mm.

It is important to use the correct size of nail for a specific application, as using a nail that is too large or too small may result in a weaker hold or other problems. It is also important to consider the type of nail that is best suited for the material being fastened and the specific application.

metal nails

What Are Nails?

A nail is a thin, pointed rod made of metal or other materials that is used to fasten materials together. It is driven into wood or other materials using a hammer or nail gun, and the sharp point helps it to hold the materials together. Nails are commonly used in construction, carpentry, and other applications where a strong, secure hold is needed.

There are many different types of nails, including common nails, finishing nails, brads, and roofing nails. Each type of nail is designed for a specific purpose, such as holding together framing materials, finishing surfaces, or attaching roofing shingles. Nails are also available in a range of sizes, with the length and diameter of the nail being determined by the specific application.

Overall, nails are a simple and effective fastening solution that is widely used in a variety of applications. They are easy to install and provide a strong hold, but they may not be as versatile or adjustable as screws.

What Are the Differences between Nails and Screws?

Nails and screws are both fasteners that are used to hold materials together, but there are several key differences between them:

  • Design: Nails are thin, pointed rods made of metal or other materials that are driven into wood or other materials using a hammer or nail gun. Screws are similar to nails, but they have threads that allow them to be screwed into materials, rather than being driven in with force.
  • Hold strength: Screws generally have a stronger hold than nails, because the threads allow them to grip the material more securely. This makes them better suited for applications where a strong, secure hold is required, such as in construction or when attaching heavy objects.
  • Versatility: Screws can be used in a wider range of materials than nails, because they can be tightened or loosened as needed. This makes them more versatile and allows them to be used in applications where the materials may need to be removed or adjusted.
  • Appearance: Screws are typically more visible than nails, because the heads are usually larger and more prominent. This can be an advantage in some applications, such as when a decorative look is desired, but in other cases, it may be more desirable to have a more discreet fastener.
  • Installation: Nails are typically driven into materials using a hammer or nail gun, while screws are typically installed using a screwdriver or drill. Screws may also require pre-drilling, depending on the material and size of the screw.

Overall, nails and screws are both useful fasteners, but they have different characteristics and are best suited for different applications. Screws are generally stronger and more versatile than nails, but they may be more visible and require more time and effort to install. Nails are simpler and faster to install, but they may not provide as strong a hold as screws.

Nails Sizes Chart

Nails can be found in a wide variety of construction applications, for furniture making, box making, and more. While not necessarily mated to each other like machine screws and nuts, nails are somewhat standardized, especially those used in construction. Here list some standard nail sizes in tabular form and briefly describe the various nails with a nail length chart.

Table 1 – Common Nails Sizes Chart

Penny SizeGaugeShank Diameter
(Nominal)
Shank Length
(Nominal)
Head Diameter
(Approx.)
2D150.0721”3/16″
2D140.0831”13/64″
3D140.0831.25″13/64″
4D120.1091.5″1/4″
5D120.1091.75″1/4″
6D110.122”17/64″
8D100.1342.5″9/32″
10D90.1483”5/16″
12D90.1483.25″5/16″
16D80.1653.5″11/32”
20D60.2034″13/32″
30D50.224.5″7/16”
40D40.2385”15/32″
60D40.2386”17/32″

Table 2 – Annular & Threaded Nails Sizes Chart

Penny SizeShank Diameter
(Nominal)
Shank Length
(Nominal)
6D0.122″
8D0.122.5″
10D0.1353”
12D0.1353.25″
16D0.1483.5″
20D0.1774”
30D0.1774.5”
40D0.1775”
50D0.1775.5″
60D0.1776”
70D0.2077”
80D0.2078”
90D0.2079”

Table 3 – Box Nails Sizes Chart

Penny SizeGaugeShank Diameter
(Nominal)
Shank Length
(Nominal)
3D14-1/20.0761.25″
4D140.0801.5″
5D140.0801.75″
6D12-1/20.0982”
7D12-1/20.0982.25″
8D11-1/20.1132.5″
10D10-1/20.1283″
16D100.1353.5″
20D90.1484″