M8 x 20mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
| Quantity |
Unit Price
(ex. VAT)
|
Unit Price
(inc. VAT)
|
|---|---|---|
| 1 - 99 | £0.19 | £0.23 |
| 100 - 999 | £0.13 | £0.16 |
| 1000 - 4999 | £0.11 | £0.13 |
| 5000 + | £0.09 | £0.11 |
Product Specification
| Thread Size | M8 |
| Thread Length | 20mm |
| Pitch | 1.25mm |
| Material | 8.8 Steel BZP |
| Across Flats | 13mm |
| Head Height | 8.1mm |
| Flange Diameter | 18.0mm |
| Standard | DIN 6921 |
| Head Style | Flanged Hex Head |
Frequently Bought Together
Total Price: £0.00
M8 x 20mm Flanged Hex Head Bolt (DIN 6921) | 8.8 Steel BZP
This M8 x 20mm DIN 6921 flanged hex head bolt is designed for securing brackets, rails and fittings in building service installations. The 8.8 Steel BZP body, 1.25mm pitch and 18mm flange diameter make it suitable for machinery, construction brackets and general steelwork.
The integrated flange acts like a built-in washer face, helping to spread clamp load and reduce surface marking on brackets, plates or fabricated parts. The 8.8 BZP steel material gives 8.8 high tensile clamping strength while the DIN 6921 specification keeps the fastener compatible with standard metric assemblies.
Common Applications
- Construction Fittings: securing brackets, rails and fittings in building service installations.
- Machinery Builds: offers a practical alternative to separate bolt and washer combinations.
- Maintenance Work: replacing worn fixings during planned servicing.
- Fabrication: creating repeatable DIN 6921 joints across metal assemblies.
M8 x 20mm Flanged Hex Head Bolt Dimensions
- Thread Size: M8
- Thread Length: 20mm
- Pitch: 1.25mm
- Across Flats: 13mm
- Head Height: 8.1mm
- Flange Diameter: 18mm
- Standard: DIN 6921
- Head Style: Flanged Hex Head
- Material: 8.8 Steel BZP
Buying Guidance
Choose stainless steel where corrosion resistance is more important than the lowest unit cost. For matched fastening assemblies, also check the washer and nut material so the joint performs consistently in service.
Related Fasteners
Most commonly used in conjunction with Washers and Nuts, these products help hold fasteners in place and join two or more parts together. We also offer Socket Head Screws
For a standard non-flanged head, view our Hex Head Bolts DIN 931. For a fully threaded hex option, view our Hex Set Screws DIN 933.
View our full range of Flanged Hex Head Bolts DIN 6921.
Need help or buying in bulk? Call 01233 713581.
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