The powerful inch concrete screw for a fast and simple installation.

Concrete screw FBS IN HW

The fischer concrete screw FBS IN HW is made of zinc-plated steel with a pressed-on washer. The expansion-free anchorage (undercut) ensures low edge and axial clearances. The ICC approval for cracked and non-cracked concrete as well as for seismic loads guarantees even more safety.

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Drill diameter

Min. drill hole depth for through fixings

Anchor length

Screw-in depth

Max. usable length

Through hole

Advantages

The special thread geometry enables fast cutting into the concrete and allow higher loads.
The expansion-free anchorage (undercut) ensures low edge and axial clearances.
The ribs under the head prevent accidental loosening of the concrete screw and making the system more secure.
The hexagonal head for a visually aesthetic installation.

Applications

Guard rails
Consoles/Base plates
Metal profiles
Shelving systems
Beam anchorage steel

Building materials

Concrete from 2.500psi until 8.000psi, non-cracked

ESR-5456

Functionality

The concrete screw FBS-IN HW is suitable for push-through installation.
For the installation, we recommend an impact wrench with a compatible socket.
If the screw head is in contact with the fixture, the correct installation of the screw is ensured (visual setting check).

Installation steps exemplary for FBS IN I at the ceiling

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Installation steps exemplary for FBS IN HW at the floor

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Drill diameter ( d₀ )	3/8 in
Min. drill hole depth for through fixings ( h₂ )	2 1/4 in
Anchor length ( l )	2 1/8 in
Screw-in depth ( h_nom )	1 5/8 in
Max. usable length ( t_fix )	1/2 in
Through hole ( d_f )	1/2 in

Drill diameter ( d₀ )	3/8 in
Min. drill hole depth for through fixings ( h₂ )	3 in
Anchor length ( l )	3 in
Screw-in depth ( h_nom )	2 1/2 in
Max. usable length ( t_fix )	1/2 in
Through hole ( d_f )	1/2 in

Drill diameter ( d₀ )	1/2 in
Min. drill hole depth for through fixings ( h₂ )	3 1/2 in
Anchor length ( l )	4 in
Screw-in depth ( h_nom )	3 in
Max. usable length ( t_fix )	1 in
Through hole ( d_f )	5/8 in

Drill diameter ( d₀ )	1/2 in
Min. drill hole depth for through fixings ( h₂ )	4 3/4 in
Anchor length ( l )	6 in
Screw-in depth ( h_nom )	4 1/4 in
Max. usable length ( t_fix )	1 3/4 in
Through hole ( d_f )	5/8 in

Drill diameter ( d₀ )	5/8 in
Min. drill hole depth for through fixings ( h₂ )	3 3/4 in
Anchor length ( l )	4 in
Screw-in depth ( h_nom )	3 1/4 in
Max. usable length ( t_fix )	3/4 in
Through hole ( d_f )	3/4 in