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Size. If the Thread Size you enter is not a standard size or if
you have a non-common TPI/Pitch, you will need to directly
enter the TPI/Pitch value, pressing
t
after entering it in order
to store the Thread Size. Both of these entry methods are
covered in the examples provided within this section.
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 mm to 300 mm
less than or equal to 10
Note:
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
Thread
Classification
section).
Internal Thread
Thread Size
Minimum Pitch Diameter
Cut Tap Drill Size*
Maximum Pitch Diameter
Roll Tap Drill Size*
Minimum Minor Diameter
Close Fit Drill Size*
Maximum Minor Diameter
Free Fit Drill Size*
Minimum Major Diameter
* 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.
(cont’d)