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  Standard Threads
 

 

 

International Standard Threads (Metric System)

Diameter of Rod (mm) Pitch (mm) Tapping Hole (mm)
3 0.55 2.35
4 0.70 3.25
5 0.85 4.05
6 1.00 4.90
7 1.00 5.90
8 1.25 6.60
9 1.25 7.60
10 1.50 8.25
11 1.50 9.25
12 1.75 9.95
14 2.00 11.60
16 2.00 13.60
18 2.50 14.95
20 2.50 16.95
22 2.50 18.95
24 3.00 20.35
27 3.00 23.35
30 3.50 25.70
33 3.50 28.70
36 4.00 31.05

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