1 9/16 X 4

3 min read Jun 12, 2024
1 9/16 X 4

1 9/16 x 4: Understanding the Dimensions of a Common Bolt Size

In the world of fasteners, bolt sizes can be confusing, especially for those who are not familiar with the measurements. One of the most common bolt sizes is 1 9/16 x 4, but what does this measurement really mean?

Breaking Down the Measurement

The measurement 1 9/16 x 4 consists of two parts: the diameter and the length.

  • Diameter: 1 9/16 inches The first part of the measurement, 1 9/16, refers to the diameter of the bolt. This is the distance across the bolt, measured from one side to the other. In this case, the diameter is 1 and 9/16 inches.
  • Length: 4 inches The second part of the measurement, 4, refers to the length of the bolt. This is the distance from the bottom of the head to the end of the bolt.

Common Uses of 1 9/16 x 4 Bolts


Bolts with a size of 1 9/16 x 4 are commonly used in various applications, including:

  • Construction: These bolts are often used in construction projects, such as building frames, bridges, and other structures that require strong fastening.
  • Automotive: They are used in the automotive industry for applications such as engine mounts, suspension systems, and other components that require high-strength fastening.
  • Industrial: 1 9/16 x 4 bolts are used in various industrial applications, including machinery, equipment, and assemblies that require strong and reliable fastening.

###.Thread Pattern and Type

The thread pattern and type of a 1 9/16 x 4 bolt depend on the specific application and industry. Some common thread patterns include:

  • UNC (Unified National Coarse)
  • UNF (Unified National Fine)
  • Metric

The type of bolt can also vary, including:

  • Hex head bolts
  • Socket head cap screws
  • Structural bolts

In conclusion, the 1 9/16 x 4 bolt size is a common and versatile size used in various industries and applications. Understanding the measurement and its components is essential for selecting the right bolt for your specific needs.

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