Concrete screw BTS6 E 6-155 M6 long with metric connection thread.

The BTS6 E 6-155 M6 concrete screw with connection thread is suitable for multiple use for non-load-bearing applications in cracked concrete and in prestressed hollow concrete slabs. The head type E features a hexagonal head with integrated washer (Ø 14 mm) and a practical connection thread with a length of 5 or 15 mm.

With a longer screw length, it bridges larger insulation thicknesses in concrete and offers a quick and secure solution for fastening rails to concrete.

The screw is suitable for multiple use in non-structural applications in cracked as well as prestressed hollow concrete slabs.

The zinc flake coating ensures high corrosion resistance and with the fire resistance class R 120 it offers increased application safety with a low anchorage depth of ≥ 50 mm. A low anchoring depth minimises the risk of hitting rebar during installation.

It is the fastest and safest solution for applications on concrete such as fastening rails. The special accessories allow installation in only two steps: Drilling and fixing with the same tool. The special adapter and the socket spanner can simply be slipped over the drill, so that all BTS 6 can be mounted in no time.


Different head shapes (hexagonal head, lens head Ø 14.5 mm, lens head large Ø 19 mm and hexagonal head with connection thread or with internal thread) allow a wide range of applications.

Coating: Zinc flake coated
Material: Steel
Connecting thread: M6
Head type: Hex-head with connecting thread
Drill hole diameter [mm] d0: 6
Drill hole depth [mm] h1: 40/55
Anchorage depth [mm] hnom: 35/50
Screw diameter [mm] ds: 7.5
Head diameter [mm] D: 14
Screw length [mm] Ls: 155
Thickness of fixture [mm] tfix: 105/120
Packaging units: 50