M12 Metric Thread Dimensions and Pitch
Below are the key dimensions for M12 metric threads: pitch, tap drill and clearance drill according to ISO 724:2023.
M12 Coarse (standard) |
|---|
| M12 Pitch: 1.75mm |
| M12 Tap Drill: 10.2mm |
| M12 Clearance Drill: 13.5mm |
M12 Metric Thread
Welcome to our M12 Metric Thread Page, your comprehensive reference for swift metrics on M12 metric threads. We've organised a wide-ranging library of data for all typical metric threads utilised in your parts, focusing on essential measurements like thread pitch, tap drill, and clearance drill. This page is an all-encompassing resource for engineers, machinists, and hobbyists seeking dependable and precise details.
M12 Coarse Pitch Dimensions
| Nominal Size | d=D | p | r | d2=D2 | d3 | D1 | h3 | H1 | Tap Drill |
|---|---|---|---|---|---|---|---|---|---|
| M12 | 12 | 1.75 | 0.253 | 10.863 | 9.853 | 10.106 | 1.074 | 0.947 | 10.2 |
M12 Fine Pitch Dimensions
All dimensions stated in are mm (millimetre)
ISO Metric Thread profile
Major Diameter
The Major Diameter is the largest diameter on the thread and is measured from the thread crest to crest (peak of the thread).
Pitch
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
Minor Diameter is the smallest diameter on the thread and is measured from the thread root to root (Bottom of the thread).
Thread Angle
The angle between the thread faces. 60 degrees in the example above.
Right-Hand Thread
The thread will assemble when rotated clockwise. "righty tighty lefty loosely"
Left-Hand Thread
The thread will assemble when rotated counter-clockwise.
Frequently asked questions
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