M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel

Product code: FHH6921-M12-45-88-BZP
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M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 45mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
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Unit Price
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Unit Price
(inc. VAT)
1 - 99 £0.72 £0.87
100 - 999 £0.52 £0.62
1000 - 4999 £0.41 £0.49
5000 + £0.37 £0.44
£0.87 / each
Quantity:


Product Specification
Thread Size M12
Thread Length 45mm
Pitch 1.75mm
Material 8.8 Steel BZP
Across Flats 16mm
Head Height 11.5mm
Flange Diameter 26.6mm
Standard DIN 6921
Head Style Flanged Hex Head

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M12 x 45mm Flanged Hex Head Bolt (DIN 6921) | 8.8 Steel BZP

This M12 x 45mm DIN 6921 flanged hex head bolt is specified for joining enclosure frames, back plates and retaining brackets. The 8.8 Steel BZP body, 1.75mm pitch and 26.6mm flange diameter make it suitable for machinery, construction brackets and general steelwork.

The DIN 6921 form combines a hex drive with a wider seating 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

  • Metal Enclosures: joining enclosure frames, back plates and retaining brackets.
  • Machinery Builds: limits the number of separate parts required during assembly.
  • Maintenance Work: replacing worn fixings during planned servicing.
  • Fabrication: creating repeatable DIN 6921 joints across metal assemblies.

M12 x 45mm Flanged Hex Head Bolt Dimensions

  • Thread Size: M12
  • Thread Length: 45mm
  • Pitch: 1.75mm
  • Across Flats: 16mm
  • Head Height: 11.5mm
  • Flange Diameter: 26.6mm
  • Standard: DIN 6921
  • Head Style: Flanged Hex Head
  • Material: 8.8 Steel BZP

Installation Advice

Use the across flats value to confirm spanner or socket access before installing inside frames or enclosed machinery. Tighten using the correct socket or spanner size and follow the required torque setting for the assembly.

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.

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