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Materials

Design

Processes

Units

Formulas

Math
 
The fine pitch is to be used only when the preferred series, Coarse Thread Pitch is not suitable for the design due to wall thickness or limited space considerations. 
 
Size (mm) Available Pitches (mm) Tap Drill (mm) Clearance Drill (mm)
 8  1  7  9
 10  1.25  8.8  11
 12  1, (1.5), 1.25  10.5  14
 14  1.5  12.5  16
 15  1  14  17
 16  1.5  14.5  18
 17  1  15.5*  19
 18  1.5  16.5  20
 20  1, 1.5  18.5  22
 22  1.5  20.5  24
 24  2  22  26
 25  1.5  23.5  27
 27  2  25  30
 30  1.5, 2  28  33
 33  2  31  36
 35  1.5  32*  38
 36  2  33  39
 39  2  36  42
 40  1.5  37*  43
 42  2  39  45
 45  1.5  42  48
 48  2  45  52
 50  1.5  46*  54
 55  1.5  51*  60
 56  2  52  62
 60  1.5  56  66
 64  2  60  70
 65  1.5  61*  71
 70  1.5  64*  76
 72  2  66  78
 75  1.5  69*  82
 80  1.5, 2  74  86
 85  2  79  91
 90  2  84  96
 95  2  89  101
 100  2  94  107
 105  2  97*  112
 110  2  100*  117
 120  2    
 130  2    
 140  2    
 150  2    
 160  3    
 170  3    
 180  3    
 190  3    
 200  3    
( ) Only for wheel studs and nuts  * Approximated Values
FREE Publications
Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

more publications