Thread data sheet

Basic Thread Dimensions

Property mm Inch
Nominal Diameter 22 0.8661
Pitch (Distance) 1 0.0394
Pitch Diameter 21.35 0.8406
Minor Diameter 20.917 0.8235
Thread Height 0.541 0.0213
Addendum 0.325 0.0128
Crest (External)
Root (Internal)
0.125 0.0049
Tap Drill Size
(75% depth)
21.03 0.828
Lead Angle
(Single Start)
0.85°
Thread Family Metric Fine Pitch (MF)
Relevant Standards ISO 68-1, ISO 9651-1, ISO 965-2, ISO 261,DIN 13
Equivalent InchThread7/8 - 28 28-UN

For more threading data scroll down, or use the Thread Calculator

Choose the Threading Data you want to explore


M22 X 1Possible Thread Classes

External Threads

4g, 4h, 6e, 6g, 6h, 8e, 8g, 5g4g, 5h4h, 5g6g, 7g6g, 7h6h, 7e6e, 9e8e, 9g8g

Metric ISO External Thread - Tolerance sketch

Internal Threads

4H, 5H, 5G, 6H, 6G, 7H, 7G, 8G

Metric ISO Internal Thread - Tolerance sketch

M22 X 1 4g (External)

* Permisable values for thread Class 4g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.862 - 21.974 0.8607 - 0.8651
d2 Pitch Diameter 21.249 - 21.324 0.8366 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.239 0.0049 - 0.0094
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 4h (External)

* Permisable values for thread Class 4h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 21.888 - 22 0.8617 - 0.8661
d2 Pitch Diameter 21.275 - 21.35 0.8376 - 0.8406
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.239 0.0049 - 0.0094
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 6e (External)

* Permisable values for thread Class 6e

# Description Value (mm) Value (Inch)
es Allowance 0.06 (Ref) 0.0024 (Ref)
d Major Diameter 21.76 - 21.94 0.8567 - 0.8638
d2 Pitch Diameter 21.172 - 21.29 0.8335 - 0.8382
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.268 0.0049 - 0.0106
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 6g (External)

* Permisable values for thread Class 6g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.794 - 21.974 0.858 - 0.8651
d2 Pitch Diameter 21.206 - 21.324 0.8349 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.268 0.0049 - 0.0106
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 6h (External)

* Permisable values for thread Class 6h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 21.82 - 22 0.8591 - 0.8661
d2 Pitch Diameter 21.232 - 21.35 0.8359 - 0.8406
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.268 0.0049 - 0.0106
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 8e (External)

* Permisable values for thread Class 8e

# Description Value (mm) Value (Inch)
es Allowance 0.06 (Ref) 0.0024 (Ref)
d Major Diameter 21.66 - 21.94 0.8528 - 0.8638
d2 Pitch Diameter 21.1 - 21.29 0.8307 - 0.8382
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.31 0.0049 - 0.0122
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 8g (External)

* Permisable values for thread Class 8g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.694 - 21.974 0.8541 - 0.8651
d2 Pitch Diameter 21.134 - 21.324 0.832 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.31 0.0049 - 0.0122
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 5g4g (External)

* Permisable values for thread Class 5g4g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.862 - 21.974 0.8607 - 0.8651
d2 Pitch Diameter 21.229 - 21.324 0.8358 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.253 0.0049 - 0.01
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 5h4h (External)

* Permisable values for thread Class 5h4h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 21.888 - 22 0.8617 - 0.8661
d2 Pitch Diameter 21.255 - 21.35 0.8368 - 0.8406
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.253 0.0049 - 0.01
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 5g6g (External)

* Permisable values for thread Class 5g6g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.794 - 21.974 0.858 - 0.8651
d2 Pitch Diameter 21.229 - 21.324 0.8358 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.253 0.0049 - 0.01
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 7g6g (External)

* Permisable values for thread Class 7g6g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.794 - 21.974 0.858 - 0.8651
d2 Pitch Diameter 21.174 - 21.324 0.8336 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.288 0.0049 - 0.0113
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 7h6h (External)

* Permisable values for thread Class 7h6h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 21.82 - 22 0.8591 - 0.8661
d2 Pitch Diameter 21.2 - 21.35 0.8346 - 0.8406
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.288 0.0049 - 0.0113
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 7e6e (External)

* Permisable values for thread Class 7e6e

# Description Value (mm) Value (Inch)
es Allowance 0.06 (Ref) 0.0024 (Ref)
d Major Diameter 21.76 - 21.94 0.8567 - 0.8638
d2 Pitch Diameter 21.14 - 21.29 0.8323 - 0.8382
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.288 0.0049 - 0.0113
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 9e8e (External)

* Permisable values for thread Class 9e8e

# Description Value (mm) Value (Inch)
es Allowance 0.06 (Ref) 0.0024 (Ref)
d Major Diameter 21.66 - 21.94 0.8528 - 0.8638
d2 Pitch Diameter 21.054 - 21.29 0.8289 - 0.8382
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.334 0.0049 - 0.0131
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 9g8g (External)

* Permisable values for thread Class 9g8g

# Description Value (mm) Value (Inch)
es Allowance 0.026 (Ref) 0.001 (Ref)
d Major Diameter 21.694 - 21.974 0.8541 - 0.8651
d2 Pitch Diameter 21.088 - 21.324 0.8302 - 0.8395
R Root Radius 0.125 (Min) 0.0049 (Min)
C Root Truncation 0.125 - 0.334 0.0049 - 0.0131
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 4H (Internal)

* Permisable values for thread Class 4H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 20.917 - 21.067 0.8235 - 0.8294
D2 Pitch Diameter 21.35 - 21.45 0.8406 - 0.8445
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 5H (Internal)

* Permisable values for thread Class 5H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 20.917 - 21.107 0.8235 - 0.831
D2 Pitch Diameter 21.35 - 21.475 0.8406 - 0.8455
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 5G (Internal)

* Permisable values for thread Class 5G

# Description Value (mm) VValue (Inch)
EL Allowance 0.026 (Ref) 0.001 (Ref)
D1 Minor Diameter 20.943 - 21.133 0.8245 - 0.832
D2 Pitch Diameter 21.376 - 21.501 0.8416 - 0.8465
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 6H (Internal)

* Permisable values for thread Class 6H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 20.917 - 21.153 0.8235 - 0.8328
D2 Pitch Diameter 21.35 - 21.51 0.8406 - 0.8469
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 6G (Internal)

* Permisable values for thread Class 6G

# Description Value (mm) VValue (Inch)
EL Allowance 0.026 (Ref) 0.001 (Ref)
D1 Minor Diameter 20.943 - 21.179 0.8245 - 0.8338
D2 Pitch Diameter 21.376 - 21.536 0.8416 - 0.8479
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 7H (Internal)

* Permisable values for thread Class 7H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 20.917 - 21.217 0.8235 - 0.8353
D2 Pitch Diameter 21.35 - 21.55 0.8406 - 0.8484
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 7G (Internal)

* Permisable values for thread Class 7G

# Description Value (mm) VValue (Inch)
EL Allowance 0.026 (Ref) 0.001 (Ref)
D1 Minor Diameter 20.943 - 21.243 0.8245 - 0.8363
D2 Pitch Diameter 21.376 - 21.576 0.8416 - 0.8494
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


M22 X 1 8G (Internal)

* Permisable values for thread Class 8G

# Description Value (mm) VValue (Inch)
EL Allowance 0.026 (Ref) 0.001 (Ref)
D1 Minor Diameter 20.943 - 21.318 0.8245 - 0.8393
D2 Pitch Diameter 21.376 - 21.626 0.8416 - 0.8514
D Major Diameter 22 (Min) 0.8661 (Min)
LE Normal Length of Engagement 3.8 - 11 0.1496 - 0.4331

* Back to Thread Class Selection


Tap Drill Sizes for M22 X 1

  • If not specified, assume a thread depth of 75%.
  • You can learn more about thread depth in tapping here.
  • To get the tap drill size in other depths, use our Tap Drill Size Calculator .
Thread Depth Tap Drill Size (Inch) Tap Drill Size (mm)
55% 0.838 21.29
60% 0.835 21.22
65% 0.833 21.16
70% 0.830 21.09
75% 0.828 21.03
80% 0.825 20.96
85% 0.823 20.90

Over Wire Measurements for M22 X 1


* 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

mm Inch
Permissible Wire Diameter Range 0.505 - 1.01 0.0199 - 0.0398
Ideal Wire Diameter 0.577 0.0227
Possible Wires
From Standard Sets
* 0.52
* 0.577
* 0.722
* 0.866
* 0.0206
* 0.0214
* 0.0222
* 0.0241
* 0.0262
* 0.0289

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 M22 X 1

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=22 MM, P=1 MM, L=10 MM)
(APPLICATION - EXTERNAL TURNING, TOWARDS CHUCK, RH TOOL, RH THREAD)
(FEED - 6 PASSES, FLANK, CONSTANT VOLUME)
(FINISH PASS - 0.025 MM)
(WITH CHAMFER -  NO)
G28 U0
G28 U0
T0100
G99 G97 S1447 M03
G00 Z5.0
G00 X27.2 M08
G76 P010060 Q25 R0
G76 X21 Z-10 P613 Q240 F1 R
G28 U0
G28 U0
M09
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.)
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CNC Gcode Program for Thread Milling of M22 X 1

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


%
O0101
(WWW.MACHININGDOCTOR.COM - THREADMILLING PROGRAM)
(CONTROLER - FANUC)
(THREAD - MAJOR DIAM.=22 MM, PITCH=1 MM, LENGTH=10 MM)
(APPLICATION - INTERNAL, RH THREAD, CLIMB MILLING)
(CUTTER DIAM=11 [SINGLE TOOTH])
(CUTTER COMPENSATION D=0 - TOOLPATH FOR TOOL CENTER)
N1 M06 T1
G54
G90 G40 G17 G94 G21
G00 X0 Y0 S2894 M03
G43 H1 Z20.0 M08
(M-CODE "THROUGH COOLANT ON")
(PASS 1 / 1)
G90 G01 Z-10.125 F2000
G91 G01 G41 D1 X2.75 Y-2.75 F434
G03 X2.75 Y2.75 Z0.125 I0 J2.75 F109
G03 Z1.0 I-5.5 J0 F217
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 Z1.0 I-5.5 J0
G03 X-2.75 Y2.75 Z0.125 I-2.75 J0
G01 G40 X-2.75 Y-2.75 F2000
G90 G00 Z20.0
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.)
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