Tapered pin

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For body piercing, see Taper insertion pin.
An example of tapered pin application.

A tapered pin is a fastener used in mechanical engineering. They are steel rods with one end having a slightly larger diameter than the other. Standard inch-sized tapered pins have a taper on diameter of 1:48[1] while metric ones have a taper of 1:50.[2] A 1:48 taper means that one end of a 4-foot-long bar (48 inches) will be 1 inch smaller in diameter than the other end, or a 1/4-inch taper over a 1-foot length.

Some tapered pins have a male screw thread on the small end that holds the pin in place with a washer and a nut. Other pins are threaded on both ends, on the thick end to pull the pin out with the same nut that holds the pin in place.

References

  1. ↑ Machinery's Handbook
  2. ↑ Newnes Mechanical Engineer's Pocket Book
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