Phillips Countersunk Screws manufactured to ISO 7046 are dimensioned by the size table reproduced on this page. The standard fixes geometry and tolerances only; material and property class are assigned by separate documents, and surface finish by separate finish standards.
ISO 7046 — Scope
ISO 7046 is "Countersunk flat head screws with type H or type Z cross recess — Product grade A".
Material, property class, surface finish and packaging are governed by separate documents — ISO 898-1 and ISO 898-2 for mechanical property classes, ISO 4042 for electroplated finishes.
Tolerance & Product Grades
ISO 7046 is written to product grade A; a different grade of the same part is a different document in the family, not a variant of this one.
Dimensions Specified by ISO 7046
| Size | Pitch (mm) | Head diameter dk (mm) | Head height k (mm) | Cross recess | Countersink angle (deg) | Reference standard |
|---|---|---|---|---|---|---|
| M1.6 | 0.35 | 3.0 | 0.96 | PH0 | 90 | ISO 7046 / DIN 965 |
| M2 | 0.4 | 3.8 | 1.2 | PH1 | 90 | ISO 7046 / DIN 965 |
| M2.5 | 0.45 | 4.7 | 1.5 | PH1 | 90 | ISO 7046 / DIN 965 |
| M3 | 0.5 | 5.6 | 1.65 | PH1 | 90 | ISO 7046 / DIN 965 |
| M3.5 | 0.6 | 6.5 | 1.93 | PH2 | 90 | ISO 7046 / DIN 965 |
| M4 | 0.7 | 7.5 | 2.2 | PH2 | 90 | ISO 7046 / DIN 965 |
| M5 | 0.8 | 9.2 | 2.5 | PH2 | 90 | ISO 7046 / DIN 965 |
| M6 | 1.0 | 11.0 | 3.0 | PH3 | 90 | ISO 7046 / DIN 965 |
| M8 | 1.25 | 14.5 | 4.0 | PH3 | 90 | ISO 7046 / DIN 965 |
| M10 | 1.5 | 18.0 | 5.0 | PH4 | 90 | ISO 7046 / DIN 965 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Phillips Countersunk Screws page.
Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
When to Specify ISO 7046
Choose ISO 7046 for international engineering work and OEM supply where ISO standards are the contractual reference. It is the default modern specification for phillips countersunk screws.
Custom manufacturing · Made to drawing
Need a screw to this standard in a non-standard size?
Parts built to ISO 7046 are already in the catalog, so a special is usually a variation on existing tooling rather than a new design — which is what keeps the cost down. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.
