Description
Overview
DIN603 defines the dimensional standard for this fastener, ensuring interchangeability and consistent installation across engineering applications.
This selected size is specified with diameter M8, length 70 mm, thread M8, pitch 1.25 mm.
Sold in multiples of '10 pieces. 1 Box = '10 pieces.
Material, Grade & Strength
A2 (304) stainless steel provides excellent general corrosion resistance.
Finish & Corrosion Protection
Match the finish to the operating environment.
Typical Uses
Suitable for machinery, fabrication, maintenance, construction and general engineering.
Technical Tips
- Select matching mating components.
- Confirm torque using recognised torque charts.
- Match material and finish to the operating environment.
Dimensions – DIN 603 / ISO 8677 M8 x 70
| Standard | DIN 603 / ISO 8677 |
|---|---|
| Product | Mushroom (cup) head square neck bolt |
| Thread | M8 x 1.25 |
| Length (l) | 70 mm |
| Head diameter (dk) | 20.65 mm |
| Head height (k) | 4.88 mm |
| Square neck | 8 x 8 mm |
| Weight (calculated) | 34.81 kg per 1 000 pieces |
Material, Grade & Strength
| Material | Stainless steel A2 (304) |
|---|---|
| Steel grade | AISI 304 (1.4301) |
| Composition | C max 0.07%, Cr 17.5-19.5%, Ni 8.0-10.5% |
| Property class | A2-70 (ISO 3506) unless marked -80 |
| Tensile strength Rm (min) | 700 MPa (class 70), 800 MPa (class 80) |
| Yield Rp0.2 (min) | 450 MPa (class 70), 600 MPa (class 80) |
| Typical use | general corrosion resistance, indoor/outdoor, food equipment |
Finish & Corrosion Protection
Plain / self colour: No applied coating. Stainless, brass and nylon parts are supplied plain; plain steel parts need oil, paint or protected environments.
DIN 603 data sheet – all sizes
| Size | Thread | Head diameter (dk) | Head height (k) | Square neck |
|---|---|---|---|---|
| M5 | M5 x 0.8 | 13.55 mm | 3.3 mm | 5 x 5 mm |
| M6 | M6 x 1 | 16.55 mm | 3.88 mm | 6 x 6 mm |
| M8 | M8 x 1.25 | 20.65 mm | 4.88 mm | 8 x 8 mm |
| M10 | M10 x 1.5 | 24.65 mm | 5.38 mm | 10 x 10 mm |
| M12 | M12 x 1.75 | 30.65 mm | 6.95 mm | 12 x 12 mm |
| M16 | M16 x 2 | 38.8 mm | 8.95 mm | 16 x 16 mm |
| M20 | M20 x 2.5 | 46.8 mm | 11.05 mm | 20 x 20 mm |
Nominal dimensions per DIN 603 / ISO 8677. 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 | M8 |
| Thread Pitch | 1.25 mm |
| Thread Style | Partial Thread |
| Head Style | Cup |
| Diameter | M8 |
| Length | 70 mm |
| Material | Stainless Steel |
| Finish | Stainless steel |
| Grade | Grade (A2) |
| Standards Met | DIN 603 |
| Package Quantity | 10 |
| Package Type | Box |