M68 Metric Thread

Below are the key dimensions for M68 metric threads: pitch, tap drill and clearance drill according to ISO 724:2023.
Welcome to our M68 Metric Thread Page, your indispensable hub for immediate assessments on M68 metric threads. We've gathered an extensive database for all the standard metric threads you'll need for your components, focusing on critical dimensions such as thread pitch, tap drill, and clearance drill. This page is a comprehensive solution for engineers, machinists, and hobbyists seeking accurate, reliable data.
All dimensions stated in are mm (millimetre)
The Major Diameter is the largest diameter on the thread and is measured from the thread crest to crest (peak of the thread).
This is the distance (mm) from one thread to the next, this can be measured from tip to tip or groove to groove. Pitch can also be defined as TPI, which stands for threads per inch.
Minor Diameter is the smallest diameter on the thread and is measured from the thread root to root (Bottom of the thread).
The angle between the thread faces. 60 degrees in the example above.
The thread will assemble when rotated clockwise. "righty tighty lefty loosely"
The thread will assemble when rotated counter-clockwise.
The pitch for an M68 thread is 6 mm.
The tap drill for an M68 thread is 62 mm.
The clearance drill for an M68 thread is 74 mm.