ISO 4161FlangeExternal hexagon
ISO 4161 M10 Flange
ISO 4161 M10 is a flange nut, on a M10 × 1.25 mm metric thread. A hex nut with a wide circular flange that spreads the clamping load and behaves like an integrated washer. Speeds up assembly versus nut + washer.
Diameter10 mm
Pitch1.25 mm
Socket size s15 mm
Height m10 mm
Flange Ø dc21.8 mm
HeadFlange
DriveExternal hexagon
Dimensions
- Standard
- ISO 4161
- Type
- Flange nut
- Size
- M10
- Thread
- M10 × 1.25
- Socket size s
- 15 mm
- Height m
- 10 mm
- Flange diameter dc
- 21.8 mm
- Drive
- External hexagon
- Head
- Flange
Nominal values in millimetres as published in ISO 4161. Estimated weight 5.306 g per piece in steel (5.34 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M10 thread pageDesignationM10 × 1.25 fine
Pitch1.25 mm
Major Ø10 mm
Pitch Ø9.19 mm
Minor Ø ext8.47 mm
Tap drillØ 8.75 mm