Basic Thread Dimensions
| Property | Inch | mm |
|---|---|---|
| Nominal Diameter | 0 | |
| Pitch (TPI) | ||
| Pitch (Distance) | 0 | |
| Pitch Diameter | 0 | |
| Minor Diameter | 0 | |
| Thread Height | 0 | |
| Addendum | 0 | |
| Crest (External) Root (Internal) |
0 | |
| Tap Drill Size (75% depth) |
0 | 0 |
| Lead Angle (Single Start) |
NAN° | |
| Thread Family | Taper Pipe Threads (NPT) | |
| Relevant Standards | ASME B1.20.1 |
For more threading data scroll down, or use the Thread Calculator
Choose the Threading Data you want to explore
1 1/4-11.5 NPTPossible Thread Classes
1 1/4-11.5 NPT p (External)
* Permisable values for thread Class p
| # | Description | Value (Inch) | Value (mm) |
|---|---|---|---|
| h | Thread Height | 0.06261 - 0.06957 | 1.59 - 1.767 |
| L1 | L1 gage Tolerance (+/- 1 Turn) | 0.08696 (Ref) | 2.209 (Ref) |
| f | Thread Truncation | 0.0029 - 0.0063 | 0.074 - 0.16 |
| ß | Tapper angle Variation | 1.641 - 2.089 | 41.681 - 53.061 |
| α | Thead V Half Angle (+/-) | 0.75 (Ref) | 19.05 (Ref) |
* Back to Thread Class Selection
1 1/4-11.5 NPT p (Internal)
* Permisable values for thread Class p
| # | Description | Value (Inch) | VValue (mm) |
|---|---|---|---|
| h | Thread Height | 0.06261 - 0.06957 | 1.59 - 1.767 |
| L1 | L1 gage Tolerance (+/- 1 Turn) | 0.08696 (Ref) | 2.209 (Ref) |
| f | Thread Truncation | 0.0029 - 0.0063 | 0.074 - 0.16 |
| ß | Tapper angle Variation | 1.641 - 2.089 | 41.681 - 53.061 |
| α | Thead V Half Angle (+/-) | 0.75 (Ref) | 19.05 (Ref) |
* Back to Thread Class Selection
Over Wire Measurements for 1 1/4-11.5 NPT
* OverWire is a measuring method to obatin the pitch diameter of threads. It is mostly used when a manufacturer does not have a Go/Nogo gauge for a thread. You can learn more about it here
| Inch | mm | |
|---|---|---|
| Permissible Wire Diameter Range | 0 - 0 | 0 - 0 |
| Ideal Wire Diameter | 0 | 0 |
| Possible Wires From Standard Sets |
Once you know your wire diameter, you need to find out what is the premissable Measurement for your pitch diameter (Depending on the class). Use our Over Wire Calculator to find out!
CNC Gcode Program for Turning of 1 1/4-11.5 NPT
The below sample Gcode is configured for:
- Fanuc Controller
- External RH Thread
- Right hand tool, machining towards the chuck
- Flank Infeed method with contant volume
- Flank Infeed method with contant volume
- Cutting conditions for steel
- Default number of passes
You can configure all the above parameters and much more in our Thread Turning Gcode Generator
%
O0100
(MACHINING DOCTOR - THREADING CNC PROGRAM)
(CONTROLER - FANUC A)
(THREAD - D=1.66 INCH, P=0.08695652173913 INCH, L=0.8695652173913 INCH)
(APPLICATION - EXTERNAL TURNING, TOWARDS CHUCK, RH TOOL, RH THREAD)
(FEED - 17 PASSES, FLANK, CONSTANT VOLUME)
(FINISH PASS - 0.0008 INCH)
(WITH CHAMFER - NO)
G28 U0 W0
T0101 G99 G97 S690 M03
G00 Z6.6
X 52.3 M08
G76 P010060 Q20 R0.02
G76 X39.454 Z-22.087 P1355 Q324 F2.209 R0.00
G28 U0 W0
M09
M30
%CNC Gcode Program for Thread Milling of 1 1/4-11.5 NPT
The below sample Gcode is configured for:
- Fanuc Controller
- Internal RH Thread
- Climb Milling
- Cutter diameter: 70% of the thread diameter
- Single tooth Thread Mill cutter
- Cutting conditions for steel
- One radial pass
You can configure all the above parameters and much more in our Thread Milling Gcode Generator
O
(WWW.MACHININGDOCTOR.COM - THREADMILLING PROGRAM)
(CONTROLER - )
(THREAD - D= MM, P= MM, L= MM)
(APPLICATION - INTERNAL, LH THREAD, CONVENTIONAL MILLING)
(CUTTER - D=, L= [MULTI TOOTH])
N M06 T
G54
G90 G40 G17 G94 G20
G00 X0 Y0 S M03
G43 H Z0 M08
(M-CODE "THROUGH COOLANT ON")
G90 G00 Z0
M30
(PLEASE NOTE THIS GCODE HAS NOT BEEN TESTED ON YOUR MACHINE AND SETUP. WE CANNOT GUARANTEE ITS ACCURACY OR COMPATIBILITY. NOTE THAT YOU ARE USING IT AT YOUR OWN RISK, AND WE SHALL NOT BE HELD LIABLE FOR ANY DAMAGES OR LOSSES ARISING FROM THE USE OF THIS PROGRAM.)
%