Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

CNC Machining Design Guide

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

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

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The preferred metric screw thread is the Coarse Thread Pitch. If this is not suitable due to wall thickness and space considerations, the Fine Thread Pitch is available. 
 
Size (mm) Pitch (mm) Tap Drill (mm) Clearance Drill (mm)
 1.6  0.35  1.25  1.8
 2  0.4  1.60  2.4
 2.5  0.45  2.00  2.90
 3  0.5  2.50  3.40
 3.5  0.6  2.90  3.90
 4  0.7  3.30  4.50
 5  0.8  4.20  5.50
 6  1  5.00  6.60
 8  1.25  6.80  9.00
 10  1.5  8.50  12.00
 12  1.75  10.20  14.00
 14  2  12.00  16.00
 16  2  14.00  18.00
 20  2.5  17.50  22.00
 22  2.5  19.50  25.00
 24  3  21.00  27.00
 27  3  24.00  30.00
 30  3.5  26.50  33.00
 36  4  32.00  40.00
 42  4.5  37.50  46.00
 48  5  43.00  53.00
 56  5.5  50.50  62.00
 64  6  58.00  70.00
 72  6    
 80  6    
 90  6    
 100  6    
Glossary
Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

CNC Machining Design Guide

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

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.