M11 X 0.75 - Basic Thread Dimensions

Property mm Inch
Nominal Diameter 11 0.4331
Pitch (Distance) 0.75 0.0295
Pitch Diameter 10.513 0.4139
Minor Diameter 10.188 0.4011
Thread Height 0.406 0.016
Addendum 0.244 0.0096
Crest (External)
Root (Internal)		 0.094 0.0037
Tap Drill Size
(75% depth)		 10.27 0.404
Lead Angle
(Single Start)		 1.3°
Thread Family Metric Fine Pitch (MF)
Relevant Standards ISO 68-1, ISO 9651-1, ISO 965-2, ISO 261,DIN 13
Equivalent Inch Thread7/16 - 32 32-UN

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

Table of Content

M11 X 0.75 Possible Thread Classes

External Threads

Choose tolerance class: 4g, 4h, 6e, 6g, 6h, 5g4g, 5h4h, 5g6g, 7g6g, 7h6h, 7e6e

Metric ISO External Thread - Tolerance sketch

Internal Threads

Choose tolerance class: 4H, 5H, 5G, 6H, 6G, 7H, 7G

Metric ISO Internal Thread - Tolerance sketch

M11 X 0.75 4g (External)

* Permisable values for thread Class 4g

# Description Value (mm) Value (Inch)
es Allowance 0.022 (Ref) 0.0009 (Ref)
d Major Diameter 10.888 - 10.978 0.4287 - 0.4322
d2 Pitch Diameter 10.428 - 10.491 0.4106 - 0.413
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.184 0.0037 - 0.0072
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

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M11 X 0.75 4h (External)

* Permisable values for thread Class 4h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 10.91 - 11 0.4295 - 0.4331
d2 Pitch Diameter 10.45 - 10.513 0.4114 - 0.4139
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.184 0.0037 - 0.0072
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

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M11 X 0.75 6e (External)

* Permisable values for thread Class 6e

# Description Value (mm) Value (Inch)
es Allowance 0.056 (Ref) 0.0022 (Ref)
d Major Diameter 10.804 - 10.944 0.4254 - 0.4309
d2 Pitch Diameter 10.357 - 10.457 0.4078 - 0.4117
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.208 0.0037 - 0.0082
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

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M11 X 0.75 6g (External)

* Permisable values for thread Class 6g

# Description Value (mm) Value (Inch)
es Allowance 0.022 (Ref) 0.0009 (Ref)
d Major Diameter 10.838 - 10.978 0.4267 - 0.4322
d2 Pitch Diameter 10.391 - 10.491 0.4091 - 0.413
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.208 0.0037 - 0.0082
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 6h (External)

* Permisable values for thread Class 6h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 10.86 - 11 0.4276 - 0.4331
d2 Pitch Diameter 10.413 - 10.513 0.41 - 0.4139
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.208 0.0037 - 0.0082
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 5g4g (External)

* Permisable values for thread Class 5g4g

# Description Value (mm) Value (Inch)
es Allowance 0.022 (Ref) 0.0009 (Ref)
d Major Diameter 10.888 - 10.978 0.4287 - 0.4322
d2 Pitch Diameter 10.411 - 10.491 0.4099 - 0.413
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.196 0.0037 - 0.0077
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 5h4h (External)

* Permisable values for thread Class 5h4h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 10.91 - 11 0.4295 - 0.4331
d2 Pitch Diameter 10.433 - 10.513 0.4107 - 0.4139
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.196 0.0037 - 0.0077
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 5g6g (External)

* Permisable values for thread Class 5g6g

# Description Value (mm) Value (Inch)
es Allowance 0.022 (Ref) 0.0009 (Ref)
d Major Diameter 10.838 - 10.978 0.4267 - 0.4322
d2 Pitch Diameter 10.411 - 10.491 0.4099 - 0.413
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.196 0.0037 - 0.0077
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 7g6g (External)

* Permisable values for thread Class 7g6g

# Description Value (mm) Value (Inch)
es Allowance 0.022 (Ref) 0.0009 (Ref)
d Major Diameter 10.838 - 10.978 0.4267 - 0.4322
d2 Pitch Diameter 10.366 - 10.491 0.4081 - 0.413
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.223 0.0037 - 0.0088
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 7h6h (External)

* Permisable values for thread Class 7h6h

# Description Value (mm) Value (Inch)
es Allowance 0 (Ref) 0 (Ref)
d Major Diameter 10.86 - 11 0.4276 - 0.4331
d2 Pitch Diameter 10.388 - 10.513 0.409 - 0.4139
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.223 0.0037 - 0.0088
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 7e6e (External)

* Permisable values for thread Class 7e6e

# Description Value (mm) Value (Inch)
es Allowance 0.056 (Ref) 0.0022 (Ref)
d Major Diameter 10.804 - 10.944 0.4254 - 0.4309
d2 Pitch Diameter 10.332 - 10.457 0.4068 - 0.4117
R Root Radius 0.094 (Min) 0.0037 (Min)
C Root Truncation 0.094 - 0.223 0.0037 - 0.0088
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 4H (Internal)

* Permisable values for thread Class 4H

# Description Value (mm) Value (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 10.188 - 10.306 0.4011 - 0.4057
D2 Pitch Diameter 10.513 - 10.598 0.4139 - 0.4172
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 5H (Internal)

* Permisable values for thread Class 5H

# Description Value (mm) Value (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 10.188 - 10.338 0.4011 - 0.407
D2 Pitch Diameter 10.513 - 10.619 0.4139 - 0.4181
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 5G (Internal)

* Permisable values for thread Class 5G

# Description Value (mm) Value (Inch)
EL Allowance 0.022 (Ref) 0.0009 (Ref)
D1 Minor Diameter 10.21 - 10.36 0.402 - 0.4079
D2 Pitch Diameter 10.535 - 10.641 0.4148 - 0.4189
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 6H (Internal)

* Permisable values for thread Class 6H

# Description Value (mm) Value (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 10.188 - 10.378 0.4011 - 0.4086
D2 Pitch Diameter 10.513 - 10.645 0.4139 - 0.4191
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 6G (Internal)

* Permisable values for thread Class 6G

# Description Value (mm) Value (Inch)
EL Allowance 0.022 (Ref) 0.0009 (Ref)
D1 Minor Diameter 10.21 - 10.4 0.402 - 0.4094
D2 Pitch Diameter 10.535 - 10.667 0.4148 - 0.42
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 7H (Internal)

* Permisable values for thread Class 7H

# Description Value (mm) Value (Inch)
EL Allowance 0 (Ref) 0 (Ref)
D1 Minor Diameter 10.188 - 10.424 0.4011 - 0.4104
D2 Pitch Diameter 10.513 - 10.683 0.4139 - 0.4206
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

M11 X 0.75 7G (Internal)

* Permisable values for thread Class 7G

# Description Value (mm) Value (Inch)
EL Allowance 0.022 (Ref) 0.0009 (Ref)
D1 Minor Diameter 10.21 - 10.446 0.402 - 0.4113
D2 Pitch Diameter 10.535 - 10.705 0.4148 - 0.4215
D Major Diameter 11 (Min) 0.4331 (Min)
LE Normal Length of Engagement 2.4 - 7.1 0.0945 - 0.2795

* Back to Thread Class Selection

Tap Drill Sizes for M11 X 0.75

  • 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% 0.412 10.46
60% 0.410 10.42
65% 0.408 10.37
70% 0.406 10.32
75% 0.404 10.27
80% 0.402 10.22
85% 0.400 10.17

Over Wire Measurements for M11 X 0.75


* 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 0.379 - 0.758 0.0149 - 0.0298
Ideal Wire Diameter 0.433 0.017
Possible Wires
From Standard Sets		 * 0.404
* 0.433
* 0.462
* 0.52
* 0.577
* 0.722
 * 0.016
* 0.018
* 0.0193
* 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!


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