ISO 7089Flat washer

ISO 7089 M6 Flat washer

ISO 7089 M6 is a flat washer, on a M6 × 1 mm metric thread. The general purpose flat washer. It protects the clamped surface, bridges oversized holes and spreads load under the head or nut.

Dimensioned drawing — ISO 7089 M6d2 12⌀6.4h 1.6
ISO 7089 M6 — Flat washerNominal dimensions in mm · Not to scale
Diameter6 mm
Pitch1 mm
Inside Ø d16.4 mm
Outside Ø d212 mm
Thickness h1.6 mm

Dimensions

Standard
ISO 7089
Type
Flat washer
Size
M6
Thread
M6 × 1
Total height h
1.6 mm
Inside diameter d1
6.4 mm
Outside diameter d2
12 mm

Nominal values in millimetres as published in ISO 7089. Estimated weight 1.016 g per piece in steel (1.023 g in stainless), calculated from the nominal geometry — real parts vary with tolerance and head chamfers.

DesignationM6 × 1
Pitch1 mm
Major Ø6 mm
Pitch Ø5.35 mm
Minor Ø ext4.77 mm
Tap drillØ 5 mm

Other lengthsISO 7089 M6

All M6 specifications

Interchangeability

ISO 7089 is catalogued with DIN 125 A as its equivalent designation. Dimensions are compared field by field rather than assumed identical.