M10×1 thread: 10 × 1 mm

Threads › M10×1

M10×1 is an ISO metric fine thread: 10 mm major diameter, 1 mm pitch, 60° form. Tap drill 9 mm. Clearance hole 10.5 mm (close) or 11 mm (normal).

Standard	ISO metric fine
Major diameter	10 mm
Pitch	1 mm
Thread angle	60°
Minor diameter, bolt	8.77 mm
Minor diameter, nut	8.92 mm
Tap drill	9 mm
Clearance hole	10.5 mm close, 11 mm normal
Usual class	6g bolt, 6H nut

Minor diameters worked out from the basic profile: major Ø − 1.22687 × pitch (bolt) and − 1.08253 × pitch (nut).

Open M10×1 in Benchsmith Add to order list

What the call-out means

`M`	ISO metric
`10`	Major diameter, mm
`× 1`	Pitch, mm. Given because it is a fine pitch
`-6g`	Bolt tolerance class (usual)
`-6H`	Nut tolerance class (usual)

Measure it

Bolt: Measure across the crests of the bolt with the caliper jaws. Worn bolts read 0.1 to 0.3 under.

Nut or tapped hole: Measure across the tops of the threads inside the nut or hole with the inside jaws. That is the minor Ø. Worn or oversize holes read a little over.

Same diameter, other pitch

M101.5 mm pitch
M10×1.251.25 mm pitch

Close in size, won't mate

Tr10×2Ø10 mm, 2 mm pitch
G1/8Ø9.73 mm, 28 TPI
R1/8Ø9.73 mm, 28 TPI
1/8-27 NPTØ10.29 mm, 27 TPI
3/8-16 UNCØ9.52 mm, 16 TPI
3/8-24 UNFØ9.52 mm, 24 TPI

One size up or down

M8×1Ø8 mm (down)
M12×1.5Ø12 mm (up)

Got a bolt and no idea what it is? Measure the outside Ø and type it into Benchsmith → Find → Thread.