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The Major Diameter of Internal Thread is defined as the sum of minor diameter of the internal thread and 1.25 times the value of the height of the fundamental triangle. Check FAQs
D=(1.083p)+Dc
D - Major Diameter of Internal Thread?p - Pitch of Threads?Dc - Minor Diameter of Internal Thread?

Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread Example

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With units
Only example

Here is how the Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread equation looks like with Values.

Here is how the Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread equation looks like with Units.

Here is how the Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread equation looks like.

29.9912Edit=(1.0833.99Edit)+25.67Edit
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Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread Solution

Follow our step by step solution on how to calculate Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread?

FIRST Step Consider the formula
D=(1.083p)+Dc
Next Step Substitute values of Variables
D=(1.0833.99mm)+25.67mm
Next Step Convert Units
D=(1.0830.004m)+0.0257m
Next Step Prepare to Evaluate
D=(1.0830.004)+0.0257
Next Step Evaluate
D=0.02999117m
Next Step Convert to Output's Unit
D=29.99117mm
LAST Step Rounding Answer
D=29.9912mm

Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread Formula Elements

Variables
Major Diameter of Internal Thread
The Major Diameter of Internal Thread is defined as the sum of minor diameter of the internal thread and 1.25 times the value of the height of the fundamental triangle.
Symbol: D
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Pitch of Threads
Pitch of Threads is the distance between two adjacent threads on a screw, bolt or nut.
Symbol: p
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Minor Diameter of Internal Thread
Minor Diameter of Internal Thread is the diameter of the imaginary co-axial cylinder that just touches the base of an internal thread.
Symbol: Dc
Measurement: LengthUnit: mm
Note: Value should be greater than 0.

Other Formulas to find Major Diameter of Internal Thread

​Go Minor Diameter of Internal Thread given Pitch and Pitch Diameter of Internal Thread
D=Dp+(0.650p)
​Go Major Diameter of Internal Thread given Pitch Diameter of Internal Thread
D=Dp+(0.75H)
​Go Major Diameter of Internal Thread given Height of Fundamental triangle
D=Dc+(1.25H)
​Go Major Diameter of Internal Thread given Pitch and Minor Diameter of External Thread
D=dc+(1.227p)

Other formulas in Fastner Geometry category

​Go Pitch Diameter of Internal Thread given Pitch
Dp=D-(0.650p)
​Go Pitch of Threads given Pitch Diameter of Internal Thread
p=D-Dp0.650
​Go Pitch Diameter of Internal Thread given Height of Fundamental Triangle
Dp=D-(0.75H)
​Go Height of Fundamental Triangle of Screw Threads given Pitch Diameter of Internal Thread
H=D-Dp0.75

How to Evaluate Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread?

Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread evaluator uses Major Diameter of Internal Thread = (1.083*Pitch of Threads)+Minor Diameter of Internal Thread to evaluate the Major Diameter of Internal Thread, Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread formula is the diameter of the imaginary co-axial cylinder that just touches the crest of an internal thread. Major Diameter of Internal Thread is denoted by D symbol.

How to evaluate Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread using this online evaluator? To use this online evaluator for Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread, enter Pitch of Threads (p) & Minor Diameter of Internal Thread (Dc) and hit the calculate button.

FAQs on Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread

What is the formula to find Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread?
The formula of Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread is expressed as Major Diameter of Internal Thread = (1.083*Pitch of Threads)+Minor Diameter of Internal Thread. Here is an example- 29991.17 = (1.083*0.00399)+0.02567.
How to calculate Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread?
With Pitch of Threads (p) & Minor Diameter of Internal Thread (Dc) we can find Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread using the formula - Major Diameter of Internal Thread = (1.083*Pitch of Threads)+Minor Diameter of Internal Thread.
What are the other ways to Calculate Major Diameter of Internal Thread?
Here are the different ways to Calculate Major Diameter of Internal Thread-
  • Major Diameter of Internal Thread=Pitch Diameter of Internal Thread+(0.650*Pitch of Threads)OpenImg
  • Major Diameter of Internal Thread=Pitch Diameter of Internal Thread+(0.75*Height of Fundamental Triangle)OpenImg
  • Major Diameter of Internal Thread=Minor Diameter of Internal Thread+(1.25*Height of Fundamental Triangle)OpenImg
Can the Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread be negative?
No, the Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread, measured in Length cannot be negative.
Which unit is used to measure Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread?
Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Major Diameter of Internal Thread given Pitch and Minor Diameter of Internal Thread can be measured.
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