M12 x 25mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel

Product code: FHH6921-M12-25-88-BZP
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M12 x 25mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 25mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 25mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 25mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 25mm Hex (Non Serrated) Flange Bolt (DIN 6921) - 8.8 BZP Steel
M12 x 25mm 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 £0.56 £0.67
100 - 999 £0.40 £0.48
1000 - 4999 £0.31 £0.37
5000 + £0.28 £0.34
£0.67 / each
Quantity:


Product Specification
Thread Size M12
Thread Length 25mm
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 25mm Flanged Hex Head Bolt (DIN 6921) | 8.8 Steel BZP

This M12 x 25mm flanged hex head bolt in 8.8 Steel BZP is designed for assembling support frames, ducts and service housings. Manufactured to DIN 6921, it uses a 26.6mm flange diameter and 16mm across flats to give a practical hex driven fixing for HVAC equipment.

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

  • Hvac Equipment: assembling support frames, ducts and service housings.
  • Machinery Builds: helps maintain a broad bearing face on thin sheet or bracketed materials.
  • Maintenance Work: replacing worn fixings during planned servicing.
  • Fabrication: creating repeatable DIN 6921 joints across metal assemblies.

M12 x 25mm Flanged Hex Head Bolt Dimensions

  • Thread Size: M12
  • Thread Length: 25mm
  • 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

Specification Notes

For vibration-prone assemblies, confirm the mating nut and joint design are suitable for the working load. The flange helps spread pressure but the correct mating component is still important for safe installation.

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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