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Major Diameter of External Thread is the diameter of the imaginary co-axial cylinder that just touches the crest of an external thread. Check FAQs
d=dc+(1712H)
d - Major Diameter of External Thread?dc - Minor Diameter of External Thread?H - Height of Fundamental Triangle?

Major Diameter of External Thread given Minor Diameter of External Thread Example

With values
With units
Only example

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

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

Here is how the Major Diameter of External Thread given Minor Diameter of External Thread equation looks like.

29.7917Edit=24.89Edit+(17123.46Edit)
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Major Diameter of External Thread given Minor Diameter of External Thread Solution

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

FIRST Step Consider the formula
d=dc+(1712H)
Next Step Substitute values of Variables
d=24.89mm+(17123.46mm)
Next Step Convert Units
d=0.0249m+(17120.0035m)
Next Step Prepare to Evaluate
d=0.0249+(17120.0035)
Next Step Evaluate
d=0.0297916666666667m
Next Step Convert to Output's Unit
d=29.7916666666667mm
LAST Step Rounding Answer
d=29.7917mm

Major Diameter of External Thread given Minor Diameter of External Thread Formula Elements

Variables
Major Diameter of External Thread
Major Diameter of External Thread is the diameter of the imaginary co-axial cylinder that just touches the crest of an external thread.
Symbol: d
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Minor Diameter of External Thread
The Minor Diameter of External Thread is the diameter of the imaginary co-axial cylinder that just touches the base of an external thread.
Symbol: dc
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Height of Fundamental Triangle
Height of Fundamental Triangle is the height of the thread when the profile is extended to a sharp vee form.
Symbol: H
Measurement: LengthUnit: mm
Note: Value should be greater than 0.

Other Formulas to find Major Diameter of External Thread

​Go Major Diameter of External Thread given Pitch and Pitch Diameter of External Thread
d=dp+(0.650p)
​Go Major Diameter of External Thread given Height of Fundamental Triangle
d=dp+(0.75H)

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 Minor Diameter of Internal Thread given Pitch and Pitch Diameter of Internal Thread
D=Dp+(0.650p)
​Go Pitch Diameter of Internal Thread given Height of Fundamental Triangle
Dp=D-(0.75H)

How to Evaluate Major Diameter of External Thread given Minor Diameter of External Thread?

Major Diameter of External Thread given Minor Diameter of External Thread evaluator uses Major Diameter of External Thread = Minor Diameter of External Thread+(17/12*Height of Fundamental Triangle) to evaluate the Major Diameter of External Thread, Major Diameter of External Thread given Minor Diameter of External Thread is used to ensure proper thread engagement and compatibility. By determining the major diameter, manufacturers can verify that the external thread will correctly mate with an internal thread, providing the necessary strength and stability in mechanical assemblies, such as screws, bolts, and nuts. This is essential for maintaining the integrity and reliability of threaded connections in various applications. Major Diameter of External Thread is denoted by d symbol.

How to evaluate Major Diameter of External Thread given Minor Diameter of External Thread using this online evaluator? To use this online evaluator for Major Diameter of External Thread given Minor Diameter of External Thread, enter Minor Diameter of External Thread (dc) & Height of Fundamental Triangle (H) and hit the calculate button.

FAQs on Major Diameter of External Thread given Minor Diameter of External Thread

What is the formula to find Major Diameter of External Thread given Minor Diameter of External Thread?
The formula of Major Diameter of External Thread given Minor Diameter of External Thread is expressed as Major Diameter of External Thread = Minor Diameter of External Thread+(17/12*Height of Fundamental Triangle). Here is an example- 29791.67 = 0.02489+(17/12*0.00346).
How to calculate Major Diameter of External Thread given Minor Diameter of External Thread?
With Minor Diameter of External Thread (dc) & Height of Fundamental Triangle (H) we can find Major Diameter of External Thread given Minor Diameter of External Thread using the formula - Major Diameter of External Thread = Minor Diameter of External Thread+(17/12*Height of Fundamental Triangle).
What are the other ways to Calculate Major Diameter of External Thread?
Here are the different ways to Calculate Major Diameter of External Thread-
  • Major Diameter of External Thread=Pitch Diameter of External Thread+(0.650*Pitch of Threads)OpenImg
  • Major Diameter of External Thread=Pitch Diameter of External Thread+(0.75*Height of Fundamental Triangle)OpenImg
Can the Major Diameter of External Thread given Minor Diameter of External Thread be negative?
No, the Major Diameter of External Thread given Minor Diameter of External Thread, measured in Length cannot be negative.
Which unit is used to measure Major Diameter of External Thread given Minor Diameter of External Thread?
Major Diameter of External Thread given Minor Diameter of External 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 External Thread given Minor Diameter of External Thread can be measured.
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