Seismic Waves. When you toss a pebble into a pond, it creates radiating waves in the water. An earthquake does the same thing with energy. When the plates fracture or slip, energy is released as seismic waves [source: USGS ]. There are several types of seismic waves. Body waves move through the inside of the Earth. There are two types of body waves: Primary waves (or P waves) are the fastest moving waves, traveling at 1 to 5 miles per second (1.6 to 8 kilometers per second). They can pass through solids, liquids and gases easily.
A #10 screw is bigger than a #8 screw and both of them are smaller than a quarter inch.0 is bigger.... the second number is threads per inch... so 10/32 or 10/24, 24 is a coarse thread and the 32 is a fine thread.... the last number is the length of the screw... 10/32 - 1 1/2 is a #10 screw with 32 threads per inch and is an inch and a half long. Mr. E Â· 5 years ago. Thumbs up. 5.
1 Therefore, a size 7/16 screw (7/16=.437) with 14 threads per inch (coarse) needs a tap drill with a diameter of about .371 inches. 2  The drill sizes that are near this are letter U (.368; 84.2%), 9.5 mm (.374; 85.6%), and 3/8 (.375; 85.8%); any of these will work well. For both of these rules of thumb (85%/90% and major minus pitch), the tap drill size yielded is not necessarily the only possible one, but it is a good one for general use. 2  Example (metric coarse): For M7.0 Ã 1.0, major minus pitch yields 6.0, but 6.1 also works well.