Inch or Metric
Type
Outside Diameter Nominal
Material
Finish
Overall Length Nominal
Effective Length

Taper Pins

Tapered pins are arguably one of the simplest pin designs available, and along with dowel pins, are the oldest. Tapered pins are turned from bar stock to varying tolerances depending on the specification. This production technique is slower than heading and grinding from which dowel pins are manufactured. It is also slower than rolling steel pins (aka rolled pins), thus the popularity and use of tapered pins is declining. The diameter at the small end of ASME Taper Pins is a function of the length and should be specified as a reference dimension for determining drilled hole size. It shall be computed by multiplying the nominal length of pin by the factor 0.2083 and subtracting the result form the basic pin diameter.

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