Thread data sheet

Basic Thread Dimensions

Property mm Inch
Nominal Diameter 16 0.6299
Pitch (Distance) 1.5 0.0591
Pitch Diameter 15.026 0.5916
Minor Diameter 14.376 0.566
Thread Height 0.812 0.032
Addendum 0.487 0.0192
Crest (External)
Root (Internal)
0.188 0.0074
Tap Drill Size
(75% depth)
14.54 0.572
Lead Angle
(Single Start)
1.82°
Thread Family Metric Fine Pitch (MF)
Relevant Standards ISO 68-1, ISO 9651-1, ISO 965-2, ISO 261,DIN 13
Equivalent InchThread5/8 - 16 16-UN

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

Choose the Threading Data you want to explore


M16 X 1.5Possible 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

M16 X 1.5 4g (External)

* Permisable values for thread Class 4g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.818 - 15.968 0.6228 - 0.6287
d2 Pitch Diameter 14.904 - 14.994 0.5868 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.342 0.0074 - 0.0135
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

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M16 X 1.5 4h (External)

* Permisable values for thread Class 4h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 15.85 - 16 0.624 - 0.6299
d2 Pitch Diameter 14.936 - 15.026 0.588 - 0.5916
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.342 0.0074 - 0.0135
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 6e (External)

* Permisable values for thread Class 6e

# Description Value (mm) Value (Inch)
es Allowance 0.067 (Ref) 0.0026 (Ref)
d Major Diameter 15.697 - 15.933 0.618 - 0.6273
d2 Pitch Diameter 14.819 - 14.959 0.5834 - 0.5889
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.378 0.0074 - 0.0149
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 6g (External)

* Permisable values for thread Class 6g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.732 - 15.968 0.6194 - 0.6287
d2 Pitch Diameter 14.854 - 14.994 0.5848 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.378 0.0074 - 0.0149
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 6h (External)

* Permisable values for thread Class 6h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 15.764 - 16 0.6206 - 0.6299
d2 Pitch Diameter 14.886 - 15.026 0.5861 - 0.5916
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.378 0.0074 - 0.0149
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 8e (External)

* Permisable values for thread Class 8e

# Description Value (mm) Value (Inch)
es Allowance 0.067 (Ref) 0.0026 (Ref)
d Major Diameter 15.558 - 15.933 0.6125 - 0.6273
d2 Pitch Diameter 14.735 - 14.959 0.5801 - 0.5889
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.431 0.0074 - 0.017
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 8g (External)

* Permisable values for thread Class 8g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.593 - 15.968 0.6139 - 0.6287
d2 Pitch Diameter 14.77 - 14.994 0.5815 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.431 0.0074 - 0.017
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 5g4g (External)

* Permisable values for thread Class 5g4g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.818 - 15.968 0.6228 - 0.6287
d2 Pitch Diameter 14.882 - 14.994 0.5859 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.358 0.0074 - 0.0141
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 5h4h (External)

* Permisable values for thread Class 5h4h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 15.85 - 16 0.624 - 0.6299
d2 Pitch Diameter 14.914 - 15.026 0.5872 - 0.5916
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.358 0.0074 - 0.0141
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 5g6g (External)

* Permisable values for thread Class 5g6g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.732 - 15.968 0.6194 - 0.6287
d2 Pitch Diameter 14.882 - 14.994 0.5859 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.358 0.0074 - 0.0141
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 7g6g (External)

* Permisable values for thread Class 7g6g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.732 - 15.968 0.6194 - 0.6287
d2 Pitch Diameter 14.814 - 14.994 0.5832 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.404 0.0074 - 0.0159
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 7h6h (External)

* Permisable values for thread Class 7h6h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 15.764 - 16 0.6206 - 0.6299
d2 Pitch Diameter 14.846 - 15.026 0.5845 - 0.5916
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.404 0.0074 - 0.0159
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 7e6e (External)

* Permisable values for thread Class 7e6e

# Description Value (mm) Value (Inch)
es Allowance 0.067 (Ref) 0.0026 (Ref)
d Major Diameter 15.697 - 15.933 0.618 - 0.6273
d2 Pitch Diameter 14.779 - 14.959 0.5819 - 0.5889
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.404 0.0074 - 0.0159
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 9e8e (External)

* Permisable values for thread Class 9e8e

# Description Value (mm) Value (Inch)
es Allowance 0.067 (Ref) 0.0026 (Ref)
d Major Diameter 15.558 - 15.933 0.6125 - 0.6273
d2 Pitch Diameter 14.679 - 14.959 0.5779 - 0.5889
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.463 0.0074 - 0.0182
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 9g8g (External)

* Permisable values for thread Class 9g8g

# Description Value (mm) Value (Inch)
es Allowance 0.032 (Ref) 0.0013 (Ref)
d Major Diameter 15.593 - 15.968 0.6139 - 0.6287
d2 Pitch Diameter 14.714 - 14.994 0.5793 - 0.5903
R Root Radius 0.188 (Min) 0.0074 (Min)
C Root Truncation 0.188 - 0.463 0.0074 - 0.0182
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 4H (Internal)

* Permisable values for thread Class 4H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 14.376 - 14.566 0.566 - 0.5735
D2 Pitch Diameter 15.026 - 15.144 0.5916 - 0.5962
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 5H (Internal)

* Permisable values for thread Class 5H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 14.376 - 14.612 0.566 - 0.5753
D2 Pitch Diameter 15.026 - 15.176 0.5916 - 0.5975
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 5G (Internal)

* Permisable values for thread Class 5G

# Description Value (mm) VValue (Inch)
EL Allowance 0.032 (Ref) 0.0013 (Ref)
D1 Minor Diameter 14.408 - 14.644 0.5672 - 0.5765
D2 Pitch Diameter 15.058 - 15.208 0.5928 - 0.5987
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 6H (Internal)

* Permisable values for thread Class 6H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 14.376 - 14.676 0.566 - 0.5778
D2 Pitch Diameter 15.026 - 15.216 0.5916 - 0.5991
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 6G (Internal)

* Permisable values for thread Class 6G

# Description Value (mm) VValue (Inch)
EL Allowance 0.032 (Ref) 0.0013 (Ref)
D1 Minor Diameter 14.408 - 14.708 0.5672 - 0.5791
D2 Pitch Diameter 15.058 - 15.248 0.5928 - 0.6003
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 7H (Internal)

* Permisable values for thread Class 7H

# Description Value (mm) VValue (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 14.376 - 14.751 0.566 - 0.5807
D2 Pitch Diameter 15.026 - 15.262 0.5916 - 0.6009
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 7G (Internal)

* Permisable values for thread Class 7G

# Description Value (mm) VValue (Inch)
EL Allowance 0.032 (Ref) 0.0013 (Ref)
D1 Minor Diameter 14.408 - 14.783 0.5672 - 0.582
D2 Pitch Diameter 15.058 - 15.294 0.5928 - 0.6021
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


M16 X 1.5 8G (Internal)

* Permisable values for thread Class 8G

# Description Value (mm) VValue (Inch)
EL Allowance 0.032 (Ref) 0.0013 (Ref)
D1 Minor Diameter 14.408 - 14.883 0.5672 - 0.5859
D2 Pitch Diameter 15.058 - 15.358 0.5928 - 0.6046
D Major Diameter 16 (Min) 0.6299 (Min)
LE Normal Length of Engagement 5.6 - 16 0.2205 - 0.6299

* Back to Thread Class Selection


Tap Drill Sizes for M16 X 1.5

  • 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% 0.588 14.93
60% 0.584 14.83
65% 0.580 14.73
70% 0.576 14.64
75% 0.572 14.54
80% 0.569 14.44
85% 0.565 14.34

Over Wire Measurements for M16 X 1.5


* 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 0.758 - 1.516 0.0298 - 0.0597
Ideal Wire Diameter 0.866 0.0341
Possible Wires
From Standard Sets
* 0.866
* 1.01
* 1.155
* 1.443

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 M16 X 1.5

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=16 MM, P=1.5 MM, L=15 MM)
(APPLICATION - EXTERNAL TURNING, TOWARDS CHUCK, RH TOOL, RH THREAD)
(FEED - 8 PASSES, FLANK, CONSTANT VOLUME)
(FINISH PASS - 0.029 MM)
(WITH CHAMFER -  NO)
G28 U0 W0
T0101 G99 G97 S1989 M03
G00 Z5.0
X 20.0 M08
G76 P010060 Q29 R0.029
G76 X14.16 Z-15.0 P920 Q315 F1.5 R0.00 
G28 U0 W0
M09
M30
%
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