ISO 7089Flat washer
ISO 7089 M14 Flat washer
ISO 7089 M14 is a flat washer, on a M14 × 1.5 mm metric thread. The general purpose flat washer. It protects the clamped surface, bridges oversized holes and spreads load under the head or nut.
Diameter14 mm
Pitch1.5 mm
Inside Ø d115 mm
Outside Ø d228 mm
Thickness h2.5 mm
Dimensions
- Standard
- ISO 7089
- Type
- Flat washer
- Size
- M14
- Thread
- M14 × 1.5
- Total height h
- 2.5 mm
- Inside diameter d1
- 15 mm
- Outside diameter d2
- 28 mm
Nominal values in millimetres as published in ISO 7089. Estimated weight 8.616 g per piece in steel (8.671 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.
Thread data
Full M14 thread pageDesignationM14 × 1.5 fine
Pitch1.5 mm
Major Ø14 mm
Pitch Ø13.03 mm
Minor Ø ext12.16 mm
Tap drillØ 12.5 mm
Other lengthsISO 7089 M14
All M14 specificationsInterchangeability
ISO 7089 is catalogued with DIN 125 A as its equivalent designation. Dimensions are compared field by field rather than assumed identical.