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the difference between the min and max effective of your two threads will tell you if there going to clash on assembly

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Q: Why do you measure effective diameter of a screw thread?
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What is screw thread?

This is a tool that is used to measure the pitch diameter of a screw. This tool looks like a standard micrometer except that the anvils are specially configured to reach into the screw thread groove and touch the pitch diameter of the screw thread. The screw thread micrometer does not measure any other aspect of the screw thread. It does not measure the: pitch; threads-per-inch; major diameter; minor diameter; flank angles; lead; helix angle.


What is screw thread micrometer?

This is a tool that is used to measure the pitch diameter of a screw. This tool looks like a standard micrometer except that the anvils are specially configured to reach into the screw thread groove and touch the pitch diameter of the screw thread. The screw thread micrometer does not measure any other aspect of the screw thread. It does not measure the: pitch; threads-per-inch; major diameter; minor diameter; flank angles; lead; helix angle.


What is the Effective diameter of a screw thread?

Effective or Pitch diameter.On a parallel thread it is the diameter of an imaginary cylinder which would pass through the threads at such a point that both male and female thread were the same width. This point is usually but not always 1/2 the thread depth. It is only at 1/2 depth when the root & crest radii are the same.


What is a number 6 size screw?

It refers to the diameter of the screw. More precisely, it is a 0.138" diameter screw. You can get it in with various head style and thread pitch.


What does a standard screw pitch gauge measure?

what does a standard thread gauge measure


How do you measure for screws on a tape measure?

well, if you want to measure the length, just stretch the tape and measure it. If you want to measure the diameter, measure the circumference of the screw, then divided by 3.1415, then you will get the diameter.


What is the largest allowable minor diameter for an M6x1.0 screw thread?

the minor diameter should be between 4.917mm and 5.153 mm, so the largest allowable size is 5.153mm


HOW TO USE A screw-thread micrometer?

First calibrate the micrometer by dialing the spindle to zero and adjusting the anvil until it is flush against the spindle. Measure the screw until the ratchet begins to click and take the first reading. This reading can then be compared to a machining book to verify the pitch diameter.


Angle of thread for different thread?

The angle of a thread of a screw is an angle between the threads and it is the defining factor for the shape of the screw thread.


What is single thread of screw thread?

when lead of the screw is equal to the pitch it is called single threaded screw


Is it possible to measure the diameter of horse hair with micrometer screw gauge?

Yes, it is possible


What is the function of screw thread?

it is what allows the screw to grip into the material its being screwed into. a screw without a thread is a nail