5/8-11 UNC-2B Dimensions: A Comprehensive Guide
The 5/8-11 UNC-2B thread is a type of screw thread commonly used in various industries, including construction, automotive, and aerospace. Understanding the dimensions of this thread is crucial for ensuring proper fitment, safety, and performance. In this article, we will delve into the details of the 5/8-11 UNC-2B dimensions and provide a comprehensive guide for engineers, designers, and manufacturers.
Thread Description
The 5/8-11 UNC-2B thread is a type of Unified National Coarse (UNC) thread, which is a standard thread form used in the United States and Canada. The "5/8" refers to the major diameter of the thread, which is 5/8 of an inch or 15.875 mm. The "11" refers to the threads per inch, which is 11 threads per inch. The "UNC" indicates that the thread is a Unified National Coarse thread, and the "2B" indicates that the thread has a Class 2B fit, which is a medium-fit thread.
Dimensions
The following are the critical dimensions of the 5/8-11 UNC-2B thread:
Major Diameter
- The major diameter of the 5/8-11 UNC-2B thread is 0.625 inches or 15.875 mm.
Pitch Diameter
- The pitch diameter of the 5/8-11 UNC-2B thread is 0.577 inches or 14.665 mm.
Minor Diameter
- The minor diameter of the 5/8-11 UNC-2B thread is 0.528 inches or 13.416 mm.
Thread Length
- The thread length of the 5/8-11 UNC-2B thread varies depending on the application, but it is typically between 1/4 inch to 1 inch or 6.35 mm to 25.4 mm.
Thread Pitch
- The thread pitch of the 5/8-11 UNC-2B thread is 0.0909 inches or 2.311 mm.
Tolerances
The tolerances for the 5/8-11 UNC-2B thread are as follows:
Major Diameter
- The tolerance for the major diameter is +0.002 inches to -0.004 inches or +0.051 mm to -0.102 mm.
Pitch Diameter
- The tolerance for the pitch diameter is +0.001 inches to -0.002 inches or +0.025 mm to -0.051 mm.
Minor Diameter
- The tolerance for the minor diameter is +0.001 inches to -0.002 inches or +0.025 mm to -0.051 mm.
Conclusion
In conclusion, the 5/8-11 UNC-2B thread is a critical component in various industries, and understanding its dimensions and tolerances is essential for ensuring proper fitment, safety, and performance. By following the guidelines outlined in this article, engineers, designers, and manufacturers can ensure that their products meet the required standards and specifications.
