M10 Screw Size Chart – Head Dimensions, Drive Sizes & Thread Pitch | Monster Bolts
M10 screws and bolts are common in automotive, machinery, fixtures, and fabrication. The chart below lists head height, head diameter, and drive size for popular M10 types. If you’re new to standards, DIN and ISO numbers are official identifiers that define dimensions (e.g., DIN 912, ISO 7380). The standard coarse thread for M10 is M10-1.5. Browse the full M10 catalog.
Metric M10-1.5 (Coarse) – Dimensions & Drive Sizes
| Type | DIN | ISO | Head Height | Head Diameter | Drive Size |
|---|---|---|---|---|---|
| M10 Hex Bolts (FT) | 933 | 4017 | 6.58 mm | 17.77 mm* | 17 mm WAF |
| M10 Hex Bolts (PT) | 931 | 4014 | 6.58 mm | 17.77 mm* | 17 mm WAF |
| M10 Socket Head Cap | 912 | 4762 | 10.0 mm | 16.27 mm | 8 mm hex |
| M10 Low Head Socket Cap | 7984 | — | 6.0 mm | 16.0 mm | 7 mm hex |
| M10 Button Head Socket | 9427 | 7380 | 5.5 mm | 17.5 mm | 6 mm hex |
| M10 Flat Head Socket | 7991 | 10642 | 6.20 mm | 22.40 mm | 6 mm hex |
| M10 Phillips Flat Head | 965 | — | 5.0 mm | 18.3 mm | #4 Phillips |
| M10 Phillips Pan Head | 7985 | 7045 | 7.50 mm | 20.0 mm | #4 Phillips |
All of these pair with matching M10 nuts and M10 washers.
Legend: PT = Partial Thread, FT = Full Thread. * = Width Across Flats (hex).
- Metric Thread Pitch Table • US TPI (comparison)
- How to Measure Length & Diameter • Printable Ruler (to scale)
- Shop all M10 fasteners — fast shipping from Milton, Florida.
M10 FAQs
What hex key fits an M10 socket head cap screw?
Typically an 8 mm hex key. Low-head socket can use 7 mm, and button socket often uses 6 mm.
What nut fits an M10 screw?
M10 screws pair with M10 nuts and M10 washers. Metric fasteners always match by nominal diameter.
What is the standard M10 thread pitch?
Standard coarse pitch is M10-1.5. Fine pitches like M10-1.25 and M10-1.0 exist—verify your tapped hole or nut.
Is an M10 the same as 3/8-16 or 3/8-24?
No. Although diameters are close, metric and imperial threads are different systems and are not interchangeable.
What tap drill size is used for M10-1.5?
A common tap drill for M10-1.5 is 8.5 mm. Always confirm for your specific material and application.