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

Concrete screw FBS IN I

The fischer concrete screw FBS IN I is made of zinc-plated steel with an internally threaded head. 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.

Product Variant

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Product Variant

4 product variants

Drill diameter

Min. drill hole depth for pre-positioned installation

Anchor length

Screw-in depth

Through hole

Connection thread UNC

Viewed 4 of 4 variant (s)

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

You can find detailed information on building materials in the approval document.

Approval

ESR-5456

Functionality

The concrete screw FBS IN is suitable for push-through installation.
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 )	1/4 in
Min. drill hole depth for pre-positioned installation ( h₁ )	2 1/8 in
Anchor length ( l )	1 5/8 in
Screw-in depth ( h_nom )	1 5/8 in
Through hole ( d_f )	3/8 in
Connection thread UNC	1/4 in

Drill diameter ( d₀ )	1/4 in
Min. drill hole depth for pre-positioned installation ( h₁ )	2 1/8 in
Anchor length ( l )	2 1/2 in
Screw-in depth ( h_nom )	1 5/8 in
Through hole ( d_f )	3/8 in
Connection thread UNC	3/8 in

Drill diameter ( d₀ )	1/4 in
Min. drill hole depth for pre-positioned installation ( h₁ )	2 5/8 in
Anchor length ( l )	2 1/2 in
Screw-in depth ( h_nom )	2 1/2 in
Through hole ( d_f )	3/8 in
Connection thread UNC	1/4 in

Drill diameter ( d₀ )	1/4 in
Min. drill hole depth for pre-positioned installation ( h₁ )	2 5/8 in
Anchor length ( l )	2 1/2 in
Screw-in depth ( h_nom )	2 1/2 in
Through hole ( d_f )	3/8 in
Connection thread UNC	3/8 in

Concrete screw FBS IN I

Product Variant

Your advantages / Product description

Application and approval

Assembly instruction

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