What do bolt numbers mean?
Then, how do you read bolt numbers?
How to Read Screw Sizes
- Read the first letter of the size. This the largest diameter: the measurement of the screw on the thread.
- Read the second number. This is either the number of threads per unit of the distance between threads; also known as the "thread pitch".
- Read the third number, generally the one following the "x."
One may also ask, is a #10 or #12 screw bigger? Machine screws are often found in sizes of: 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14—the larger the number, the larger the screw.
People also ask, is a #12 screw the same as 1 4?
A #8 screw size is . 164 fraction of an inch. The diameters listed in the chart below are in fractions of an inch, so the #12 is just shy of 1/4 inch. A more detailed table with thread count can be found below, along with tap drill sizes.
What does m10x1 25 mean?
For example, an M10x1. 5 (coarse) thread has a 1.5mm pitch, while an M10x1. 25 (fine) thread has a 1.25mm pitch. For example, the thread "M10" automatically means a coarse pitch, while any added pitch callout, such as M10x1. 25, specifies a non-coarse pitch.