M10 Bolt Size and Thread Specifications
M10 is a common metric bolt size for automotive, machinery, and structural applications. A 10 mm nominal diameter with 1.5 mm pitch offers strong clamp load and is standard in many industries.
Specifications
| Specification | Value |
|---|---|
| Nominal diameter | 10 mm |
| Standard pitch | 1.5 mm |
| Fine pitch | 1.25 mm |
| Tap drill size | 8.5 mm |
| Closest imperial equivalent | 3/8-16 |
Hex head size
| Bolt size | Hex head size |
|---|---|
| M10 | 17 mm |
Common uses
M10 bolts are used in automotive engines and chassis, machinery, structural steel connections, and heavy-duty hardware. They are a standard choice for high-clamp applications.
Related tools
Related charts
FAQ
What is the standard pitch for an M10 bolt?
The standard pitch for M10 is 1.5 mm. Fine pitch is 1.25 mm.
What drill size should be used for tapping M10 threads?
For M10 x 1.5 coarse thread, use an 8.5 mm tap drill.
What imperial bolt is closest to M10?
3/8-16 UNC is the closest imperial equivalent to M10.