M2 Metric Thread Dimensions and Pitch
Below are the key dimensions for M2 metric threads: pitch, tap drill and clearance drill according to ISO 724:2023.
M2 Coarse (standard) |
|---|
| M2 Pitch: 0.4mm |
| M2 Tap Drill: 1.6mm |
| M2 Clearance Drill: 2.4mm |
M2 Metric Thread
Explore our M2 Metric Thread Page, your go-to resource for swift assessments of M2 metric threads. We've curated an exhaustive library of data for all common metric threads you'll require for your parts, outlining crucial measurements like thread pitch, tap drill, and clearance drill. It's an all-encompassing solution for engineers, machinists, and hobbyists in need of dependable, precise data.
M2 Coarse Pitch Dimensions
| Nominal Size | d=D | p | r | d2=D2 | d3 | D1 | h3 | H1 | Tap Drill |
|---|---|---|---|---|---|---|---|---|---|
| M2 | 2 | 0.4 | 0.058 | 1.74 | 1.509 | 1.567 | 0.245 | 0.217 | 1.6 |
M2 Fine Pitch Dimensions
All dimensions stated in are mm (millimetre)
ISO Metric Thread profile
Glossary
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
What is the pitch of an M2 thread?
What is the tap drill for an M2 thread?
What size is a clearance hole for an M2 thread?
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