Product Description
M8 Grade 10.9 Self Colour Steel Fully Threaded Flange Bolts DIN 6921
M8 fully threaded hexagon flange bolts manufactured from grade 10.9 high tensile steel to DIN 6921, with a black self colour, unplated finish. These bolts feature an M8 x 1.25mm metric coarse thread and an integral flange beneath the hexagon head to distribute the clamping load over a wider bearing area.
Specifications
| Feature | Specification |
|---|---|
| Thread Size | M8 |
| Thread Pitch | 1.25mm metric coarse |
| Material | High tensile steel |
| Property Class | 10.9 |
| Finish | Black self colour, unplated |
| Head Type | Hexagon with integral flange |
| Thread Coverage | Fully threaded |
| Dimensional Standard | DIN 6921 |
Available Lengths
| Thread Size | Bolt Length | Thread Pitch |
|---|---|---|
| M8 | 10mm | 1.25mm |
| M8 | 12mm | 1.25mm |
| M8 | 16mm | 1.25mm |
| M8 | 20mm | 1.25mm |
| M8 | 25mm | 1.25mm |
| M8 | 30mm | 1.25mm |
Bolt length is measured from the bearing surface beneath the flange to the end of the bolt.
Key Features
- DIN 6921 hexagon flange bolt design
- Grade 10.9 high tensile steel
- Fully threaded M8 design with 1.25mm metric coarse pitch
- Integral flange provides a wider bearing surface
- Black self colour finish without a plated coating
- Choice of six lengths from 10mm to 30mm
DIN 6921 specifies the hexagon flange bolt dimensions. BS EN ISO 898-1 is the reference standard for the mechanical properties of steel bolts with specified property classes, including 10.9. Please contact us before ordering to confirm compliance certification availability.
Use with a matching M8 x 1.25mm nut or tapped hole, ensuring suitable thread engagement and strength for the assembly. Follow the tightening requirements for the application. Self colour steel may require additional corrosion protection where exposed to moisture.
Related Products
Specifications are intended as a guide. Confirm the required thread size, pitch, length and flange clearance before ordering.
| A | B | C | D | E | F |
| 8mm | 16mm | 17.5mm | 7.5mm | 13mm | 1.25 |
| 8mm | 10mm | 17.5mm | 7.5mm | 13mm | 1.25 |
| 8mm | 12mm | 17.5mm | 7.5mm | 13mm | 1.25 |
| 8mm | 20mm | 17.5mm | 7.5mm | 13mm | 1.25 |
| 8mm | 25mm | 17.5mm | 7.5mm | 13mm | 1.25 |
| 8mm | 30mm | 17.5mm | 7.5mm | 13mm | 1.25 |
