Description
Overview
DIN84 defines the dimensional requirements for slotted cheese head machine screws, ensuring consistent selection and installation in mechanical assemblies.
This selected size is specified with diameter M4, length 25 mm, thread M4, pitch 0.7 mm.
Sold in multiples of '1000 pieces. 1 Box = '1000 pieces.
Material, Grade & Strength
Select the material and grade according to the required strength, corrosion exposure and service environment.
Finish & Corrosion Protection
Zinc plating provides economical sacrificial corrosion protection for indoor and general industrial service.
Typical Uses
Commonly used in electrical equipment, panels, covers, light machinery, fixtures and general workshop assemblies.
Technical Tips
- Use the correct screwdriver or drive bit to prevent head damage.
- Match the thread size with the tapped hole or mating nut.
- Use washers where load spreading or surface protection is required.
Selection Advice
Confirm the standard, size, material, finish and drive style before ordering to ensure compatibility with the assembly.
Dimensions – DIN 84 / ISO 1207 M4 x 25
| Standard | DIN 84 / ISO 1207 |
|---|---|
| Product | Slotted cheese head machine screw |
| Thread | M4 x 0.7 |
| Length (l) | 25 mm |
| Head diameter (dk) | 7 mm |
| Head height (k) | 2.6 mm |
| Drive | Slotted |
| Weight (calculated) | 2.64 kg per 1 000 pieces |
Material, Grade & Strength
| Material | Mild steel (grade 4.6/4.8) |
|---|---|
| Property class | 4.6 / 4.8 (mild steel) |
| Tensile strength Rm (min) | 400 / 420 MPa |
| Yield strength (min) | 240 / 340 MPa |
| Proof load stress | 225 / 310 MPa |
| Matching nut | property class 5 (ISO 898-2) |
Finish & Corrosion Protection
Zinc plated (clear/blue passivated): Electroplated zinc, typically 5-8 um (ISO 4042). Economical protection for dry indoor and light outdoor use; white rust in neutral salt spray typically from ~24-72 h depending on passivate.
DIN 84 data sheet – all sizes
| Size | Thread | Head diameter (dk) | Head height (k) | Drive |
|---|---|---|---|---|
| M2 | M2 x 0.4 | 3.8 mm | 1.3 mm | Slotted |
| M2.5 | M2.5 x 0.45 | 4.5 mm | 1.6 mm | Slotted |
| M3 | M3 x 0.5 | 5.5 mm | 2 mm | Slotted |
| M3.5 | M3.5 x 0.6 | 6 mm | 2.4 mm | Slotted |
| M4 | M4 x 0.7 | 7 mm | 2.6 mm | Slotted |
| M5 | M5 x 0.8 | 8.5 mm | 3.3 mm | Slotted |
| M6 | M6 x 1 | 10 mm | 3.9 mm | Slotted |
| M8 | M8 x 1.25 | 13 mm | 5 mm | Slotted |
| M10 | M10 x 1.5 | 16 mm | 6 mm | Slotted |
Nominal dimensions per DIN 84 / ISO 1207. Weights are calculated from nominal dimensions and are a guide only (±10%). Values for fit and strength should be confirmed against the standard for critical applications.
Specifications
| Measurement Type | Metric |
|---|---|
| Thread Size | M4 |
| Thread Pitch | 0.7 mm |
| Thread Style | Fully Thread |
| Drive Type | Slotted |
| Head Style | Cheese |
| Diameter | M4 |
| Length | 25 mm |
| Material | Mild Steel |
| Finish | Zinc Plated |
| Grade | Grade 4.8 |
| Standards Met | DIN 84 |
| Package Quantity | 1000 |
| Package Type | Box |