The three-wire thread measuring formula for inch-based threads is: 1.5155 M = D+ 3G - N Where: G = Wire diameter %3D D = Major diameter of thread (convert to decimal size) %3D M = Measurement over the wires N = Number of threads per inch 1/2-20 UNF (wire size 0.032") 1/4-20 UNC (wire size 0.032") 3/8-16 UNC (wire size 0.045") 7/16-14 UNC (wire size 0.060“)

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Calculate the correct measurements with units over the wires for the following threads. Use the wire size given in the problem. Round your calculations to the nearest thousandth. Please put a unit if it's needed.
The three-wire thread measuring formula for inch-based
threads is:
1.5155
M = D+ 3G
N
Where:
G = Wire diameter
%3D
D = Major diameter of thread (convert to decimal
size)
M = Measurement over the wires
N = Number of threads per inch
1/2-20 UNF
(wire size 0.032")
1/4-20 UNC
(wire size 0.032")
3/8-16 UNC
(wire size 0.045")
7/16-14 UNC
(wire size 0.060")
Transcribed Image Text:The three-wire thread measuring formula for inch-based threads is: 1.5155 M = D+ 3G N Where: G = Wire diameter %3D D = Major diameter of thread (convert to decimal size) M = Measurement over the wires N = Number of threads per inch 1/2-20 UNF (wire size 0.032") 1/4-20 UNC (wire size 0.032") 3/8-16 UNC (wire size 0.045") 7/16-14 UNC (wire size 0.060")
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