ISO 7089Flat washer
ISO 7089 M10 Flat washer
ISO 7089 M10 is a flat washer, on a M10 × 1.25 mm metric thread. The general purpose flat washer. It protects the clamped surface, bridges oversized holes and spreads load under the head or nut.
Diameter10 mm
Pitch1.25 mm
Inside Ø d110.5 mm
Outside Ø d220 mm
Thickness h2 mm
Dimensions
- Standard
- ISO 7089
- Type
- Flat washer
- Size
- M10
- Thread
- M10 × 1.25
- Total height h
- 2 mm
- Inside diameter d1
- 10.5 mm
- Outside diameter d2
- 20 mm
Nominal values in millimetres as published in ISO 7089. Estimated weight 3.573 g per piece in steel (3.596 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
Other lengthsISO 7089 M10
All M10 specificationsInterchangeability
ISO 7089 is catalogued with DIN 125 A as its equivalent designation. Dimensions are compared field by field rather than assumed identical.