DIN 7985 Pan Head Pozidriv Machine Screw Technical Datasheet
DIN 7985 Phillips Pan Head Machine Screw (Cross Recess Type Z)
DIN 7985 Pan Head Pozidriv Machine Screws are metric threaded machine screws featuring a rounded pan head and a Pozidriv (Type Z) cross recess. They are widely used for fastening metal components, electrical equipment, machinery, control panels, furniture hardware, and general industrial assemblies where a neat appearance and reliable tightening are required.
The Pozidriv recess provides improved torque transmission compared to conventional Phillips drives, reducing cam-out and enabling more secure installation. Although DIN 7985 has been superseded by ISO 7045, the DIN designation continues to be extensively specified in engineering drawings and industrial procurement. DIN 7985 covers both Phillips (Type H) and Pozidriv (Type Z) drive variants.
Table of Contents
ITEM CODE: 1040
Standards
DIN 7985
Equivalent standard ISO 7045
Dimensions
| d1 | M1.6 | M2 | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 |
|---|---|---|---|---|---|---|---|---|---|
| d2 | 3.2 | 4 | 5 | 6 | 8 | 10 | 12 | 16 | 20 |
| k max | 1.42 | 1.72 | 2.12 | 2.52 | 3.25 | 3.95 | 4.75 | 6.15 | 7.68 |
| m ∼ | 1.8 | 2.5 | 2.7 | 3.1 | 4.6 | 5.3 | 6.8 | 9 | 10.2 |
| Bit No. | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 4 |
all dimensions in mm
Dimensions Tolerances:
General dimensional tolerances for standard metric fasteners—including thread diameter, overall length, head diameter, head height/thickness, across flats, and washer dimensions—are available in our Standard Dimensional Tolerances for Common Metric Fasteners guide.
Certain product-specific features, such as drive recess dimensions, socket depth, countersink geometry, under-head radii, and other special characteristics, are governed by the applicable DIN or ISO product standard and may not included in this datasheet.
Download Technical Datasheets
Stainless Steel
| Grade | Download |
|---|---|
| A2-70 (SS304) | ⬇️ Download Datasheet |
| A4-70 (SS316) | ⬇️ Download Datasheet |
Carbon Steel
| Property Class | Download |
|---|---|
| 4.8 | ⬇️ Download Datasheet |
| 8.8 | ⬇️ Download Datasheet |
Mechanical Properties
| Material / Property Class | Tensile Strength | Yield Strength | Standard |
|---|---|---|---|
| Steel 4.8 | ≥ 400 MPa | ≥ 320 MPa | ISO 898-1 |
| Steel 5.8 | ≥ 500 MPa | ≥ 400 MPa | ISO 898-1 |
| Steel 8.8 | ≥ 800 MPa | ≥ 640 MPa | ISO 898-1 |
| Stainless Steel A2-50 | ≥ 500 MPa | — | ISO 3506-1 |
| Stainless Steel A2-70 | ≥ 700 MPa | ≥ 450 MPa | ISO 3506-1 |
| Stainless Steel A4-70 | ≥ 700 MPa | ≥ 450 MPa | ISO 3506-1 |
| Titanium Grade 2 | Approx. 345 MPa | Approx. 275 MPa | ASTM B348 |
| Titanium Grade 5 | Approx. 895 MPa | Approx. 828 MPa | ASTM B348 |
Material Characteristics and Recommended Applications
| Material | Characteristics | Typical Applications |
|---|---|---|
| Steel Class 4.8 | General-purpose fastening | Electrical assemblies, furniture |
| Steel Class 8.8 | Higher tensile strength | Industrial machinery |
| Stainless Steel A2 (304) | Excellent corrosion resistance | Food processing, HVAC, electrical panels |
| Stainless Steel A4 (316) | Superior corrosion resistance | Marine, offshore, chemical plants |
| Brass | Non-magnetic, decorative, conductive | Electrical equipment, instrumentation |
| Titanium Grade 2 | Lightweight, corrosion resistant | Aerospace, medical equipment |
| Titanium Grade 5 | High strength-to-weight ratio | Aerospace, motorsports, high-performance engineering |
Technical Specifications
| Property | Specification |
|---|---|
| Product Type | Pan Head Machine Screw |
| Standard | DIN 7985 |
| ISO Equivalent | ISO 7045 |
| Drive Type | Pozidriv (Type Z) |
| Head Style | Pan Head |
| Thread Type | Metric Coarse |
| Thread Direction | Right Hand |
| Thread Tolerance | 6g |
| Diameter Range | M2 – M10* |
| Length Range | 3 mm – 100 mm* |
| Property Class (Steel) | 4.8 (standard), 8.8 (available) |
| Stainless Steel Grades | A2-70, A4-70 |
| Finish Options | Plain, Zinc Plated, Yellow Zinc, Black Oxide, Nickel, Geomet®, Dacromet®, Mechanical Zinc, Hot Dip Galvanized* |
| Drive Size | Pozidriv Z1–Z4 (depending on diameter) |
| Manufacturing Process | Cold Forged |
| Thread | Fully Threaded |
*Availability varies by manufacturer and material. DIN 7985 originally specifies sizes approximately from M1.6 to M10.
DIN 7985 Pan Pozidriv Head Screw Weight Chart
Weight in kgs. per 1,000 pcs. All weights are approximations.
| Diameter/ Length | M2.5 | M3 | M4 | M5 | M6 | M8 | M10 |
|---|---|---|---|---|---|---|---|
| 3 | 0.34 | ||||||
| 4 | 0.37 | 0.621 | |||||
| 5 | 0.4 | 0.666 | 1.4 | ||||
| 6 | 0.43 | 0.71 | 1.48 | 2.66 | |||
| 8 | 0.49 | 0.798 | 1.63 | 2.91 | |||
| 10 | 0.55 | 0.876 | 1.79 | 3.16 | 5.14 | 10.9 | |
| 12 | 0.61 | 0.954 | 1.94 | 3.41 | 5.49 | 11.5 | 21.2 |
| 14 | 0.67 | 1.03 | 2.1 | 3.66 | 5.84 | 12.2 | 22.2 |
| 16 | 0.73 | 1.11 | 2.25 | 3.91 | 5.29 | 12.8 | 23.2 |
| 18 | 0.79 | 1.19 | 2.41 | 4.16 | 5.64 | 13.5 | 24.2 |
| 20 | 0.85 | 1.27 | 2.56 | 4.41 | 6 | 14.2 | 25.2 |
| 22 | 0.91 | 1.35 | 2.72 | 4.66 | 6.35 | 14.8 | 26.2 |
| 25 | 1 | 1.47 | 2.94 | 5.03 | 6.87 | 15.8 | 27.7 |
| 28 | 1.09 | 1.59 | 3.24 | 5.4 | 7.4 | 16.8 | 29.2 |
| 30 | 1.18 | 1.71 | 3.44 | 5.7 | 7.75 | 17.5 | 30.2 |
| 35 | 3.94 | 6.5 | 8.6 | 19.1 | 32.7 | ||
| 40 | 4.44 | 7.3 | 9.5 | 20.7 | 35.2 | ||
| 45 | 8 | 10.4 | 22.3 | 37.7 | |||
| 50 | 8.7 | 11.3 | 23.9 | 41.2 | |||
| 55 | 25.4 | 43.7 | |||||
| 60 | 27 | 46.2 |
Applications
DIN 7985 Pan Poziriv Screws are commonly used in:
- Electrical control panels
- Industrial machinery
- Consumer electronics
- Sheet metal assemblies
- Control cabinets
- Switchgear
- Furniture fittings
- HVAC equipment
- Automotive interiors
- Telecom equipment
- Instrumentation
- General engineering assemblies
Advantages
- Pozidriv recess provides higher torque transmission than Phillips.
- Reduced cam-out during tightening.
- Rounded pan head offers an attractive finished appearance.
- Fully threaded design ensures secure engagement.
- Suitable for use with tapped holes or machine nuts.
- Available in multiple materials and finishes.
- Easy installation using standard Pozidriv drivers.
- Widely accepted international standard.
- Suitable for manual and automated assembly.
- Compatible with a wide range of industrial applications.
Frequently Asked Questions
Is DIN 7985 still an active standard?
DIN 7985 has been officially withdrawn and replaced by u003cstrongu003eISO 7045u003c/strongu003e, although DIN 7985 remains widely used in engineering drawings and purchasing specifications.
What is the difference between Phillips and Pozidriv?
Pozidriv features additional ribs between the main slots, allowing greater torque transmission and reducing screwdriver slip (cam-out) compared to Phillips. Both variants were covered under DIN 7985.
Are DIN 7985 and ISO 7045 interchangeable?
For most engineering applications, yes. ISO 7045 is the international successor to DIN 7985, with only minor dimensional differences for a few sizes.
What materials are commonly available?
Carbon steel, stainless steel A2 (304), stainless steel A4 (316), brass, and titanium Grades 2 and 5 are commonly available.
Can Phillips screwdrivers be used on Pozidriv screws?
It is not recommended. A proper Pozidriv screwdriver provides better engagement, minimizes damage to the recess, and delivers higher tightening torque.
Are these screws fully threaded?
Yes. Standard DIN 7985 screws are fully threaded.
Can DIN 7985 screws be used outdoors?
Yes, when manufactured from stainless steel A2, A4, or titanium. Carbon steel screws should have an appropriate protective coating for outdoor use.
What industries commonly use DIN 7985 screws?
They are widely used in electrical equipment, machinery, furniture, sheet metal fabrication, control panels, instrumentation, and general engineering assemblies.
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