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2. Self-tapping screw - Wikipedia

   en.wikipedia.org/wiki/Self-tapping_screw

   A self-tapping screw is a screw that can tap its own hole as it is driven into the material. More narrowly, self-tapping is used only to describe a specific type of thread-cutting screw intended to produce a thread in relatively soft material or sheet materials, excluding wood screws .

3. Machine taper - Wikipedia

   en.wikipedia.org/wiki/Machine_taper

   Machine tapers can be grouped into self-holding and self-releasing classes. With self-holding tapers, the male and female wedge together and bind to each other to the extent that the forces of drilling can be resisted without a drawbar, and the tool will stay in the spindle when idle.

4. List of drill and tap sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

   Below is a comprehensive drill and tap size chart for all drills and taps: Inch, imperial, and metric, up to 36.5 millimetres (1.44 in) in diameter. In manufactured parts, holes with female screw threads are often needed; they accept male screws to facilitate the building and fastening of a finished assembly.

5. Tap and die - Wikipedia

   en.wikipedia.org/wiki/Tap_and_die

   where is the tap drill size, is the major diameter of the tap (e.g., 10 mm for a M10×1.5 tap), and pitch is the pitch of the thread (1.5 mm in the case of a standard M10 tap) and so the correct drill size is 8.5 mm. This works for both fine and coarse pitches, and also produces an approximate 75% thread.

6. Jacqueline K. Barton - Pay Pals - The Huffington Post

   data.huffingtonpost.com/paypals/jacqueline-k-barton

   From January 2008 to December 2012, if you bought shares in companies when Jacqueline K. Barton joined the board, and sold them when she left, you would have a -17.6 percent return on your investment, compared to a -2.8 percent return from the S&P 500.

7. Chatter and rumors about ICE went on for days at school of ...

   www.aol.com/chatter-rumors-ice-went-days...

   Email sent to parents. On January 29, several days after chatter about deportations allegedly spread at school, the district sent out an email to parents addressing President Donald Trump’s new ...