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User's Guide —
The following specifies the entry ranges that the calculator
allows for the Thread Size and TPI/Pitch values for numeric,
fractional and metric Thread Sizes:
Thread Size TPI/Pitch
Numeric 0, 1, 2, 3, 4, 5, 6, 8,
10, 12, 14
less than 100
Fractional 0.06" to 6" less than 100
Metric 1.6 mm to 300 mm less than or equal to 10
Entries outside of the ranges mentioned above will result in an
Entry Error.
The following tables list the available Thread characteristics
provided by the Thread Size function. Note that there are two
separate listings, one for Internal Threads and one for External
Threads. The listing shown within the Thread Size function
is determined by the set Thread Classification (see
section).
INTERNAL THREAD
Thread Size Minimum Pitch Diameter
Thread Pitch* Maximum Pitch Diameter
Cut Tap Drill Size** Minimum Minor Diameter
Roll Tap Drill Size** Maximum Minor Diameter
Close Fit Drill Size** Minimum Major Diameter
Free Fit Drill Size**
* Thread Pitch is only displayed for Numeric and U.S. Thread Sizes.
** If the resulting hole size is greater than 2 Inches or 50 mm, the
actual hole size will be displayed instead of adjusting to the closest
Drill Size.
3844-UG4088E-E.indd 393844-UG4088E-E.indd 39 11/18/2022 6:50:13 AM11/18/2022 6:50:13 AM
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