Pan Head Screws manufactured to ISO 1207 are dimensioned by the size table reproduced on this page. The standard fixes geometry and tolerances only; material and property class are assigned by ISO 898-1/898-2, and surface finish by separate finish standards.
ISO 1207 — Scope
ISO 1207 specifies the dimensions and tolerances of pan head screws. Material, property class, surface finish and packaging are governed by separate documents in the same standards family (for example ISO 898-1 for the mechanical property classes of bolts and screws).
Tolerance & Product Grades
ISO 1207, alongside the related ISO 1207 / ISO 7045 / DIN 7985 entries on this site, specifies product grades (typically A or B for fine work and C for general engineering) and tolerance classes for the controlling dimensions. Choose the grade against the precision your application requires.
Dimensions Specified by ISO 1207
| Size | Pitch (mm) | Head diameter dk (mm) | Head height k (mm) | Cross recess | Reference standard |
|---|---|---|---|---|---|
| M1 | 0.25 | 2.0 | 0.8 | PH0 | ISO 1207 / ISO 7045 / DIN 7985 |
| M1.2 | 0.25 | 2.3 | 0.9 | PH0 | ISO 1207 / ISO 7045 / DIN 7985 |
| M1.4 | 0.3 | 2.6 | 1.0 | PH0 | ISO 1207 / ISO 7045 / DIN 7985 |
| M1.6 | 0.35 | 3.0 | 1.0 | PH0 | ISO 1207 / ISO 7045 / DIN 7985 |
| M2 | 0.4 | 3.8 | 1.3 | PH1 | ISO 1207 / ISO 7045 / DIN 7985 |
| M2.5 | 0.45 | 4.7 | 1.5 | PH1 | ISO 1207 / ISO 7045 / DIN 7985 |
| M3 | 0.5 | 5.6 | 1.8 | PH1 | ISO 1207 / ISO 7045 / DIN 7985 |
| M3.5 | 0.6 | 6.5 | 2.1 | PH2 | ISO 1207 / ISO 7045 / DIN 7985 |
| M4 | 0.7 | 8.0 | 2.4 | PH2 | ISO 1207 / ISO 7045 / DIN 7985 |
| M5 | 0.8 | 9.5 | 3.0 | PH2 | ISO 1207 / ISO 7045 / DIN 7985 |
| M6 | 1.0 | 12.0 | 3.6 | PH3 | ISO 1207 / ISO 7045 / DIN 7985 |
| M8 | 1.25 | 16.0 | 4.8 | PH3 | ISO 1207 / ISO 7045 / DIN 7985 |
| M10 | 1.5 | 20.0 | 6.0 | PH4 | ISO 1207 / ISO 7045 / DIN 7985 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Pan Head Screws page. Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
When to Specify ISO 1207
Choose ISO 1207 for international engineering work and OEM supply where ISO standards are the contractual reference. It is the default modern specification for pan head screws.