#6 - 32 UNC : Thread Dimensions (Machining Doctor) (2024)

Table of Contents
Basic Thread Dimensions #6 - 32 UNCPossible Thread Classes #6 - 32 UNC 2A (External) #6 - 32 UNC 3A (External) #6 - 32 UNC 2B (Internal) #6 - 32 UNC 3B (Internal) Tap Drill Sizes for #6 - 32 UNC Over Wire Measurements for #6 - 32 UNC CNC Gcode Program for Turning of #6 - 32 UNC CNC Gcode Program for Thread Milling of #6 - 32 UNC Our Top Picks ThreaDoctor: Advanced thread Calculator Machinability Chart True position calculator and formulas Surface Finish: Calculators, Convertors, and Charts Hardness Conversion Calculator References

Basic Thread Dimensions

PropertyInchmm
Nominal Diameter0.1383.505
Pitch (TPI)32
Pitch (Distance)0.03130.795
Pitch Diameter0.11772.99
Minor Diameter0.10082.56
Thread Height0.01690.429
Addendum0.01010.257
Crest (External)
Root (Internal)		0.00390.099
Tap Drill Size
(75% depth)		0.1072.73
Lead Angle
(Single Start)		4.84°
Thread FamilyUnified Coarse Pitch (UNC)
Relevant StandardsASME B1.1-2003
Equivalent MetricThreadM3.5
#6 - 32 UNC : Thread Dimensions (Machining Doctor) (1)

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

Choose the Threading Data you want to explore

Tolerance Classes

Thread Milling Gcode

Turning Gcode

Tap Drill Size

Tolerance Classes

Thread Milling Gcode

Turning Gcode

Over Wire

Tap Drill Size

#6 - 32 UNCPossible Thread Classes

External Threads

2A, 3A

#6 - 32 UNC : Thread Dimensions (Machining Doctor) (12)

Internal Threads

2B, 3B

#6 - 32 UNC : Thread Dimensions (Machining Doctor) (13)

#6 - 32 UNC 2A (External)

* Permisable values for thread Class 2A

#DescriptionValue (Inch)Value (mm)
esAllowance0.0009 (Ref)0.023 (Ref)
dMajor Diameter0.1311 - 0.13713.33 - 3.482
d2Pitch Diameter0.1139 - 0.11682.893 - 2.967
d3Minor Diameter
(UNR Only)		0.0999 (Ref)2.537 (Ref)
αVaration of 30° anngle (+/-)1.5°
PVaration of pitch (+/-)0.0008 (Ref)0.02 (Ref)

* Values are calculated for Length of engagement of 5xPitch. For calculations of different engagement length use the Thread Calculator'

* Back to Thread Class Selection

#6 - 32 UNC 3A (External)

* Permisable values for thread Class 3A

#DescriptionValue (Inch)Value (mm)
esAllowance0 (Ref)0 (Ref)
dMajor Diameter0.132 - 0.1383.353 - 3.505
d2Pitch Diameter0.1156 - 0.11772.936 - 2.99
d3Minor Diameter
(UNR Only)		0.1008 (Ref)2.56 (Ref)
αVaration of 30° anngle (+/-)1.5°
PVaration of pitch (+/-)0.0006 (Ref)0.015 (Ref)

* Values are calculated for Length of engagement of 5xPitch. For calculations of different engagement length use the Thread Calculator'

* Back to Thread Class Selection

#6 - 32 UNC 2B (Internal)

* Permisable values for thread Class 2B

#DescriptionValue (Inch)VValue (mm)
D1Minor Diameter0.1042 - 0.1162.647 - 2.946
D2Pitch Diameter0.1177 - 0.12142.99 - 3.084
DMajor Diameter0.1380 (Min)3.505 (Min)
αVaration of 30° anngle (+/-)1.5°
PVaration of Pitch (+/-)0.0011 (Ref)0.028 (Ref)

* Values are calculated for Length of engagement of 5xPitch. For calculations of different engagement length use the Thread Calculator

* Back to Thread Class Selection

#6 - 32 UNC 3B (Internal)

* Permisable values for thread Class 3B

#DescriptionValue (Inch)VValue (mm)
D1Minor Diameter0.1042 - 0.1142.647 - 2.896
D2Pitch Diameter0.1177 - 0.12052.99 - 3.061
DMajor Diameter0.1380 (Min)3.505 (Min)
αVaration of 30° anngle (+/-)1.5°
PVaration of Pitch (+/-)0.0008 (Ref)0.02 (Ref)

* Values are calculated for Length of engagement of 5xPitch. For calculations of different engagement length use the Thread Calculator

* Back to Thread Class Selection

Tap Drill Sizes for #6 - 32 UNC

  • 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 DepthTap Drill Size (Inch)Tap Drill Size (mm)
55%0.1162.94
60%0.1142.89
65%0.1122.83
70%0.1102.78
75%0.1082.73
80%0.1062.68
85%0.1032.63

Over Wire Measurements for #6 - 32 UNC

#6 - 32 UNC : Thread Dimensions (Machining Doctor) (14)

* 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

Inchmm
Permissible Wire Diameter Range0.0158 - 0.03160.402 - 0.803
Ideal Wire Diameter0.01810.459
Possible Wires
From Standard Sets		* 0.016
* 0.018
* 0.0193
* 0.0206
* 0.0214
* 0.0222
* 0.0241
* 0.0262
* 0.0289
* 0.404
* 0.433
* 0.462
* 0.52
* 0.577
* 0.722

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 #6 - 32 UNC

The below sample Gcode is configured for:

#6 - 32 UNC : Thread Dimensions (Machining Doctor) (15)
  • 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 ThreadTurningGcodeGenerator 

%O0100(MACHINING DOCTOR - THREADING CNC PROGRAM)(CONTROLER - FANUC A)(THREAD - )(D=0.138 INCH, P=0.031 INCH, L=0.313 INCH)(APPLICATION - EXTERNAL TURNING, TOWARDS CHUCK, RH TOOL, RH THREAD)(FEED - 17 PASSES, FLANK, CONSTANT VOLUME)(FINISH PASS - 0.0003 INCH)(WITH CHAMFER - NO)G28 U0G28 U0T0100G99 G97 S5000 M03G00 Z5.1G00 X5.5 M08G76 P010060 Q8 R0G76 X3 Z-8 P487 Q116 F1 RG28 U0G28 U0M09M30(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.)%

CNC Gcode Program for Thread Milling of #6 - 32 UNC

The below sample Gcode is configured for:

#6 - 32 UNC : Thread Dimensions (Machining Doctor) (16)
  • 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 ThreadMillingGcodeGenerator 


%O0101(WWW.MACHININGDOCTOR.COM - THREADMILLING PROGRAM)(CONTROLER - FANUC)(THREAD - MAJOR DIAM.=0.138 INCH, PITCH=0.03125 INCH, LENGTH=0.3125 INCH)(APPLICATION - INTERNAL, RH THREAD, CLIMB MILLING)(CUTTER DIAM=0.069 [SINGLE TOOTH])(CUTTER COMPENSATION D=0 - TOOLPATH FOR TOOL CENTER)N1 M06 T1G54G90 G40 G17 G94 G21G00 X0 Y0 S10000 M03G43 H1 Z25.4 M08(M-CODE "THROUGH COOLANT ON")(PASS 1 / 1)G90 G01 Z-8.0367 F2032G91 G01 G41 D1 X0.4382 Y-0.4382 F1524G03 X0.4382 Y0.4382 Z0.0992 I0 J0.4382 F381G03 Z0.7938 I-0.8763 J0 F762G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 Z0.7938 I-0.8763 J0G03 X-0.4382 Y0.4382 Z0.0992 I-0.4382 J0G01 G40 X-0.4382 Y-0.4382 F2032G90 G00 Z25.4M30(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.)%

Our Top Picks

  • ThreaDoctor: Advanced thread Calculator

  • Machinability Chart

  • True position calculator and formulas

  • Surface Finish: Calculators, Convertors, and Charts

  • Hardness Conversion Calculator

#6 - 32 UNC : Thread Dimensions (Machining Doctor) (2024)

References

Top Articles
15 Easy Alkaline Diet Recipes - Beauty Bites
Authentic Gordon Ramsay Turkey Recipe - TheFoodXP
Wjac Closing
2024 NHL Draft 1st-round results, analysis | NHL.com
Get Started with Canvas @ USD
Canvas Launching Spring 2024
Something Big Has Been Here Part 5 Dying Light 2
Kaitlyn Krems- Wiki, Bio, Age, Height, Boyfriend, Net Worth
America’s Top Doctor on Why He Wants Warning Labels on Social Media
YouTube Livestream Q&A Transcript, June 18, 2024
Berklee College Of Music Academic Calendar
Mn Lottery Post
Latest Posts
Classic French Crepes (Easy Crepes Recipe)
Light Chocolate Cheesecakes - The Recipe Rebel
Article information

Author: Frankie Dare

Last Updated:

Views: 5645

Rating: 4.2 / 5 (73 voted)

Reviews: 80% of readers found this page helpful

Author information

Name: Frankie Dare

Birthday: 2000-01-27

Address: Suite 313 45115 Caridad Freeway, Port Barabaraville, MS 66713

Phone: +3769542039359

Job: Sales Manager

Hobby: Baton twirling, Stand-up comedy, Leather crafting, Rugby, tabletop games, Jigsaw puzzles, Air sports

Introduction: My name is Frankie Dare, I am a funny, beautiful, proud, fair, pleasant, cheerful, enthusiastic person who loves writing and wants to share my knowledge and understanding with you.