60 Degree Threads

60 DEGREE THREADS
Threads Per InchNominal Best Wire Diameter (Inches)EDP
1200.0048160D120
1000.0057760D100
960.0060160D96
900.0064260D90
800.0072260D80
720.0080260D72
640.0090260D64
560.0103160D56
500.0115560D50
480.0120360D48
440.0131260D44
400.0144360D40
360.0160460D36
320.0180460D32
300.0192560D30
280.0206260D28
270.0213860D27
260.0222160D26
240.0240660D24
220.0262460D22
200.0288760D20
180.0320860D18
160.0360860D16
140.0412460D14
130.0444160D13
120.0481160D12
11 1/20.050260D11-1/2
110.0524960D11
100.0577460D10
90.0641560D9
80.0721760D8
7 1/20.0769860D7-1/2
70.0824860D7
60.0962360D6
5 1/20.1049760D5-1/2
50.1154760D5
4 1/20.128360D4-1/2
40.1443460D4
3 1/20.1649660D3-1/2
3 1/40.1776560D3-1/4
30.1924560D3
2 3/40.2099560D2-3/4
2 1/20.2309460D2-1/2
20.2886860D2

PMC Mercury 60 Degree Metric Thread Measuring wires are the best sizes for metric threads.

They may be used with other forms or with special pitches, constants for which may be calculated from the formula provided below. Our wires (three per set) are made from selected high-speed steel, are extremely accurate in roundness and straightness and are within 0.000020” (20 millionths) of exact size. The most accurate and universally recognized method of obtaining pitch diameter measurements of thread plug or setting plug gages is by means of using three hardened steel measuring wires laid into opposite sides of the thread. Please reference PMC Mercury Handbook #37 for additional information.

The formula for determining wire constants for all 60° threads = 3W -0.866025P.
W=actual average wire size
P=Pitch (1/TPI)

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