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Type F3 Beam Flange Clamp

An easy to install, high strength, beam flange clamp for suspending building services from structural or secondary beams.

View technical specification


The Type F3 is an FM approved (M10 and above), high strength beam flange clamp with a large clamping range for moderate to high loading applications. Supplied with or without a bolt and is compatible with drop rods and J bolts. Suitable for parallel flanges only. Manufactured from malleable iron with hot dip galvanised finish to provide high performance and anti-corrosion protection.

Features & Benefits

  • Simple cost effective solution.
  • Large clamping range.
  • Suitable for parallel flanges.


Click on an approval logo to download the certificate or report.


  • Manufactured from malleable iron to BS EN 1562.
  • Supplied with hot dip galvanised finish.

Technical Specification

Click to view labelled diagram

Product Code Safe Working Load (FOS 4:1) Dimensions
With Bolt Without Bolt Bolt 4.6 Tensile Clamping Range Tightening Torque* S T V X Width R
kN mm Nm mm mm mm mm mm
F308NC F308NB M8 0.9 2 - 25 6 19 6 8 20 33
F310NC F310NB M10 1.2 2 - 30 20 22 7 10 25 38
F312NC F312NB M12 2.0 2 - 40 39 29 9 12 35 49
F316NC F316NB M16 4.0 3 - 55 93 36 12 16 46 60
F320NC F320NB M20 6.0 5 - 70 177 44 15 19 55 76

* Torque figures based on bolts / setscrews in an unlubricated condition.

Faster to Install

No drilling or welding!

Independently Approved

Reasons to choose Lindapter

  • Save time and money

    Save time and money

    Clamping two steel sections together avoids time-consuming welding or conventional drilling and bolting.

  • Safer connections

    Safer connections

    On-site drilling and welding is avoided, removing the need for hot work permits and encouraging safer site conditions.

  • High strength

    High strength

    Lindapter clamps are manufactured from high strength materials to resist high load requirements and harsh environments.

  • Industry leading approvals

    Industry leading approvals

    Lindapter has earned a reputation synonymous with safety and reliability, gaining multiple independent approvals.

  • Adjustable


    Quickly align steel sections by sliding the section into the correct position before tightening the Girder Clamp to complete the installation.

  • Free connection design

    Free connection design

    Lindapter’s experienced Engineers can design a bespoke connection based on your specific requirements free of charge.

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