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Changing a U.S. Thread Classification
KeysTRoKe
DIsPlay
g *
all CleaReD
1. Set the calculator to U.S. Mode:
g S S S +
Us UnITs
2. Recall the current Thread Classification:
g b
(Thread Class)
InT 2b
3. Change to U.S. External Thread Class 2:
b
eXT 2a
4. Change to U.S. External Thread Class 1:
1 g b
(Thread Class)
eXT 1a
5. Change to U.S. Internal Thread Class 1:
b
InT 1b
fractional Thread size example
Find the available Internal and External Thread characteristics
for a 1/4", 28 TPI screw:
KeysTRoKe
DIsPlay
g *
all CleaRed
1. Verify Thread Class is set to 2B:
g b
(Thread Class)
InT 2b
2. Enter the Thread Size:
1 / 4 t
sIZe
1/4 –
InCH
3. Enter the TPI and store the final Thread Size:
2 8 t
THReD
sIZe
$
1/4 –
28
InCH
4. Find the available Internal Thread characteristics:
t
(Cut Tap Drill Size)
TaP
DRIll sIZe
3
UG4089E-A-inside.indd 50
6/9/2011 3:16:19 PM
