DIN 965
Countersunk head screw,cross recess
| Size | P (mm, coarse) | dk (mm, max) | k (mm, max) | PH/PZ (nom.) | m PH (mm, nom.) | t PH (mm, min) |
|---|---|---|---|---|---|---|
| 0.35 | 3.00 | 1.00 | 0 | 1.60 | 0.60 | |
| 0.40 | 3.80 | 1.20 | 0 | 1.90 | 0.90 | |
| 0.45 | 4.70 | 1.50 | 1 | 2.90 | 1.40 | |
| 0.50 | 5.50 | 1.65 | 1 | 3.20 | 1.70 | |
| 0.60 | 7.30 | 2.35 | 2 | 4.40 | 1.90 | |
| 0.70 | 8.40 | 2.70 | 2 | 4.60 | 2.10 | |
| 0.80 | 9.30 | 2.70 | 2 | 5.20 | 2.70 | |
| 1.00 | 11.30 | 3.30 | 3 | 6.80 | 3.00 | |
| 1.25 | 15.80 | 4.65 | 4 | 8.90 | 4.00 | |
| 1.50 | 18.30 | 5.00 | 4 | 10.00 | 5.10 |
Values per ISO 7046-1:2011.Differs from DIN 965
Work out the screw length you needOpens the bolted joint configurator with DIN 965 / ISO 7046-1 chosen.Verified data
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About DIN 965
What it is
A machine screw with a countersunk head and a cross recess, type H (Phillips, PH) or type Z (Pozidriv, PZ): the cone-shaped head sinks into a countersink and ends flush. An M5 has a 9.2 mm head (9.3 mm in ISO 7046-1) and takes a size 2 bit.
Where it is used
On covers, hinges, fittings, housings and sheet-metal parts, where the head must end flush and the load is light, from M1.6 to M10.
DIN or ISO
ISO 7046-1 replaced DIN 965. Several heads changed: from M3.5 the ISO head is wider and higher (M4: 8.4 mm across and 2.7 mm high, against 7.5 and 2.2), the M2 takes a smaller bit and the recesses have other dimensions. ISO 7046-1 makes them in class 4.8; its part 2 gives the same screws in 8.8 and stainless steel.
Typical mistakes
- Measuring the length under the head. A countersunk screw is measured overall, head included.
- Driving a type Z (Pozidriv) recess with a Phillips bit, or the reverse. The bit rides out and damages the recess.
- Cutting the countersink for a DIN 965 head and fitting ISO 7046-1 screws. From M3.5 the ISO head is wider and stands proud.
- Expecting much load from it. A countersunk head carries less than the thread, and ISO 7046-1 screws are class 4.8.
References
- DIN 965:1990 Cross recessed countersunk flat head screws
- ISO 7046-1:2011 Countersunk flat head screws (common head style) with type H or type Z cross recess — Product grade A — Part 1: Steel screws of property class 4.8