M10 Screw Hole Size

M10 clearance hole (screw passes through)

A clearance hole lets the M10 fastener’s 10 mm shank slide straight through without binding. The standard sizes:

When in doubt, 11.0 mm is the safe default. Need the same numbers for M8, M12, and the rest? The full table is in the metric clearance hole size chart, and the bolt-focused version is the bolt hole size chart.

M10 tapped hole (threading into the part)

To cut M10 threads directly into a part, you drill a smaller tap drill hole first, then run an M10 tap. For standard coarse M10 (1.5 mm pitch), the tap drill is 8.5 mm.

Tapping works in metal. In plastic and 3D prints, cut threads strip easily — use a heat-set insert instead, which needs a straight hole sized to the insert. See heat-set inserts for 3D printing and how to add threads to a part.

M10 holes for 3D printing

Printed holes come out smaller than designed — the plastic squeezes inward and the first layer can sag. For a 3D-printed M10 clearance hole, start one size up (around 11.5–12.0 mm modeled) and test-fit; widen if the bolt binds. The reasons and a general fit guide are in tolerances for 3D printed parts.

Designing the part that holds the hole? Mind the wall around it — see wall thickness for 3D printing.

Put an M10 hole in your part

With PartWork.ai you describe the part you need — “a plate with four M10 clearance holes in a 80 mm square” — and get a solid part you can view free and export. No CAD skills. It runs in the browser on desktop or phone. See creating parts and exporting files.