Robert Friedrichs GmbH
Schrauben- und Werkzeugfabrik

– Founded 1930 –

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Hexagon bolts ISO 4014

Standard parts

Properties of our hexagon bolts ISO 4014

  • Standard: ISO 4014 (formerly DIN 931)
  • Head shape: Hexagonal head for easy mounting
  • Thread: Metric partial thread
  • Material: Steel (e.g. strength class 8.8 / 10.9), stainless steel A2/A4, galvanised, burnished or hot-dip galvanised
  • Lengths & diameters: Large selection of dimensions available

Data sheets for download

Data sheet strength class 8.8

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Thanks to the hexagon head, the screws can be installed quickly and easily using a spanner or socket – even with high tightening torques. The partial thread ensures better load distribution and is ideal for fixed clamp connections.

Advantages at a glance

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Partial thread for secure clamp connections

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Robust, reliable & easy to install

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Available in many strength classes & materials

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Complies with international standard ISO 4014

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Can be ideally combined with nuts & washers to DIN/ISO

Areas of application

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Mechanical and plant engineering

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Steel and metal construction

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Vehicle and shipbuilding

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Construction & assembly

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Workshop & maintenance

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