Electrical Connections with fastening on steel

Electrical Connections (Earthing)

In this guide we’ll show you which Hilti Fastening on Steel (FoS) products to use for electrical connections.

S-BT threaded studs are our best practice recommendation for electrical connections, however it’s also possible to use X-BT threaded studs. For offshore applications we recommend studs in Stainless Steel (SS) material.

Earthing and Bonding

Earthing or bonding in less than 2 minutes: Certified, suitable for all areas.

Earthing - equivalent to welding boss

  • Functional bounding 269A
  • Short circuit bonding 14.4 kA (IEC)
  • Lightning Class H/100kA 

Elec. Connector
S-BT-ER M10 HC 120

Art. no.: 2204739

Bonding - for equalization of potentials

  • Functional bounding 40A
  • Short circuit bonding 1.25 kA (IEC)
  • Lightning Class N/50kA

Threaded stud
S-BT-ER M10/15 SN 6

Art. no.: 2186203


Installation guides

Selection Guides - choose your application