Art.-No. 574028

fischer inch concrete screw FBS IN 1/4 X 1-5/8 I 3/8 with internally threaded head

Top Features
  • The internal thread design fits perfectly to applications like fixings of pipe routes, channel systems, ventilation ducts and facilities in the building service engineering.

Your advantages / Product description

The powerful concrete screw for fast and simple installation.
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 internal thread design fits perfectly to applications like fixings of pipe routes, channel systems, ventilation ducts and facilities in the building service engineering.
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.

Application and approval

Applications
  • Guard rails
  • Consoles/Base plates
  • Metal profiles
  • Shelving systems
  • Beam anchorage steel
Building materials
  • Concrete from 2.500 psi until 8.000 psi, non-cracked
You can find detailed information on building materials in the approval document.
Approval
  • ESR-5456

Assembly instruction

Functionality
  • The concrete screw FBS-IN I is suitable for push-through installation.
  • For the installation, we recommend the fischer impact wrench FSS 18V 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
1 / 4
Installation steps exemplary for FBS IN HW at the floor
1 / 4

Technical Data

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 (
hnom
)
1 5/8 in
Through hole (
df
)
3/8 in
Connection thread UNC 3/8 in

Documents for Downloading

  • Approvals and Certificates
  • Technical documents
  • Sales materials
ICC Certification
pdf, ESR-5456
ICC-ES Evaluation Report
Valid from 03/01/2025
to 03/31/2027
cd-green-58bb58464c-47qvg