DIN 85 Slotted Pan Head Machine Screw Technical Datasheet
DIN 85 Slotted Pan Head Machine Screws are metric threaded fasteners featuring a low rounded pan head with a traditional straight (slotted) drive. Designed for fastening metal components, machinery, electrical equipment, and general engineering assemblies, these screws are widely used where standard flat-blade installation is preferred.
Manufactured according to DIN 85, these screws are available in carbon steel, stainless steel, brass, aluminium, and titanium with multiple protective finishes to suit various industrial and environmental conditions. Although Phillips and Pozidriv drives have become more common in modern assembly, DIN 85 slotted screws remain popular in restoration work, electrical applications, architectural hardware, and maintenance operations.
Table of Contents
ITEM CODE: 1055
Standards
DIN 85
No direct equivalent ISO standard
Dimensions
| D | M3 | M4 | M5 | M6 | M8 |
|---|---|---|---|---|---|
| D1 | 6 | 8 | 10 | 12 | 16 |
| K | 1.8 | 2.4 | 3 | 3.6 | 4.8 |
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 |
|---|---|
| Standard | DIN 85 |
| Product Type | Slotted Pan Head Machine Screw |
| Thread Type | Metric Coarse Thread |
| Drive Type | Slotted |
| Head Style | Pan Head |
| Thread Direction | Right Hand |
| Thread | Fully Threaded |
| Diameter Range | M3 – M8 |
| Length Range | 3 mm – 100 mm |
| Mechanical Grades | 4.8, 5.8, 8.8 (Steel) |
| Stainless Steel Grades | A2-50, A2-70, A4-70, A4-80 |
| Titanium Grades | Grade 2, Grade 5 |
| Brass Grade | CuZn |
| Surface Finish | Plain, Zinc Plated, Yellow Zinc, Black Oxide, Nickel, Chrome, Hot Dip Galvanized* |
| Thread Tolerance | 6g |
| Standard Thread | ISO Metric Coarse |
| Temperature Resistance | Depends on material selected |
DIN 85 Slotted Pan Head Screw Weight Chart
Weight in kgs. per 1,000 pcs. All weights are approximations.
| Diameter/ Length | M3 | M4 | M5 | M6 | M8 |
|---|---|---|---|---|---|
| 3 | 0.471 | ||||
| 4 | 0.515 | 1.02 | |||
| 5 | 0.56 | 1.09 | |||
| 6 | 0.604 | 1.17 | 2.06 | ||
| 8 | 0.692 | 1.33 | 2.2 | 3.56 | |
| 10 | 0.78 | 1.47 | 2.55 | 3.92 | 7.85 |
| 12 | 0.868 | 1.63 | 2.8 | 4.27 | 8.49 |
| 14 | 0.956 | 1.79 | 3.05 | 4.62 | 9.13 |
| 16 | 1.04 | 1.95 | 3.3 | 4.98 | 9.77 |
| 18 | 1.13 | 2.1 | 3.54 | 5.34 | 10.4 |
| 20 | 1.22 | 2.25 | 3.78 | 5.69 | 11 |
| 22 | 1.31 | 2.4 | 4.02 | 6.04 | 11.7 |
| 25 | 1.44 | 2.64 | 4.4 | 6.56 | 12.6 |
| 28 | 1.57 | 2.87 | 4.67 | 7.1 | 13.6 |
| 30 | 1.66 | 3.02 | 5.02 | 7.45 | 14.2 |
| 35 | 1.88 | 3.41 | 5.62 | 8.25 | 15.8 |
| 40 | 2.1 | 3.8 | 6.25 | 9.2 | 17.4 |
| 45 | 4.17 | 6.88 | 10 | 18.9 | |
| 50 | 4.57 | 7.5 | 10.9 | 20.6 | |
| 55 | 22.1 |
Applications
DIN 85 Slotted Pan Head Screws are commonly used in:
- Electrical switchgear
- Control panels
- Machinery assembly
- Instrumentation
- Sheet metal fabrication
- Architectural hardware
- Furniture fittings
- Restoration projects
- Telecommunications equipment
- Medical equipment
- Consumer appliances
- General industrial maintenance
Advantages
- Traditional slotted drive compatible with standard flat screwdrivers
- Rounded pan head provides an attractive finished appearance
- Fully threaded for secure fastening
- Suitable for machine-tapped holes and nuts
- Available in multiple materials and finishes
- Excellent corrosion resistance in stainless steel and titanium versions
- Ideal for maintenance and restoration projects
- Easy replacement for existing DIN 85 installations
- Widely available in metric sizes
- Suitable for electrical and precision equipment
Frequently Asked Questions
What is DIN 85?
DIN 85 is the German standard for slotted pan head machine screws with metric threads. Although officially withdrawn, it continues to be widely manufactured and used.
What is the difference between DIN 85 and DIN 7985?
The primary difference is the drive style:
DIN 85: Slotted drive
DIN 7985: Phillips or Pozidriv cross recess
Both feature a pan head profile.
Are DIN 85 screws fully threaded?
Yes. DIN 85 machine screws are manufactured with full metric threads.
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 DIN 85 screws be used outdoors?
Yes. For outdoor or corrosive environments, stainless steel A4 (316) or titanium is recommended.
What screwdriver is required?
A standard flat-blade (slotted) screwdriver matching the slot width should be used.
Are these screws available with fine threads?
The standard specifies metric coarse threads. Fine-thread versions may be available as special manufacture.
Need Technical Assistance or a Quote?
Looking for pricing, samples, CAD drawings, or help selecting the right fastener? Our team can help you choose the correct product for your application.
📧 sales@horizonincindia.com | 📞 +91 80 4117 9152 | 💬 +91 99167 77262
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- Standard Dimensional Tolerances
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