M2 Screw Size and Thread Pitch
M2 = 2.0 mm outer diameter, 0.4 mm coarse pitch, 1.6 mm tap drill. ISO metric thread for electronics.
Open the interactive Standards & Sizes tool →Key facts
| Outer diameter | 2.0 mm |
|---|---|
| Pitch (coarse) | 0.4 mm |
| Tap drill | 1.6 mm |
| Socket head A/F | 1.5 mm |
| Typical use | Electronics, glasses, precision gear |
Frequently asked questions
What is the pitch of an M2 screw?
The standard coarse pitch for M2 is 0.4 mm; its outer diameter is 2.0 mm.
What tap drill is needed for M2?
Use a 1.6 mm drill for an M2 tapped hole (coarse, ISO 261).
Related pages
M2 Screw is part of Standards & Sizes on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.
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