DINWithdrawnDraft · single source

DIN 7504 O

Self-drilling screws with tapping screw thread — Form O — cross recessed raised countersunk head

Thread: Tapping screw thread (ISO 1478)
Tolerance: thread as DIN 7970
Property classes: A2
Materials: SteelStainless

Dimensions

mm · values as the standard states them

Size	dk	k	recess_norecess H
3.9	7.5	2.3	PH2
4.2	8.1	2.5	PH2
4.8	9.5	3	PH2
5.5	10.9	3.4	PH3
6.3	12.4	3.8	PH3

Ranges read min – max; ≤ / ≥ where the standard gives one limit, ≈ for approximate values. Sizes in (brackets) are non-preferred. Select a row for its size sheet.

Size sheet · DIN 7504 O

4.8

dk: head diameter; 9.5
k: head height; 3
recess_no: drive size (recess H); PH2

Provenance

Draft — values taken from a single source and not yet cross-checked.

fasteners.eudimensions, lengths, materials, property classes, current norm, equivalent norms
Otto Rothstatus

Accessed 2026-09-23 · For design and safety-critical use, consult the current edition of the standard.

Same product type

DIN 7504 K — Self-drilling screws with tapping screw thread — Form K — hexagon washer head DIN 7504 N — Self-drilling screws with tapping screw thread — Form N — cross recessed pan head DIN 7504 P — Self-drilling screws with tapping screw thread — Form P — cross recessed countersunk head All 4 standards of this type →

Dimensions

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