Fischer UltraCut FBS II 8-14 GVZ/CP
Technical Specifications and Installation Guide
Product Overview
The Fischer UltraCut FBS II 8-14 GVZ/CP is a high-performance screw anchor designed for demanding fastening applications. It offers excellent load-bearing capacities and is suitable for use in various concrete and masonry substrates. The product is available in different versions, including FBS II US (galvanized) and FBS II SK (stainless steel), and comes in multiple sizes ranging from 8mm to 14mm diameter.
Product Variants and Key Specifications
The UltraCut FBS II is available in two main variants: FBS II US (galvanized) and FBS II SK (stainless steel). The following table outlines key dimensions and specifications for different sizes:
| UltraCut FBS II | 8 [mm] | 10 [mm] | 12 [mm] | 14 [mm] |
| d₀ [mm] | 8 | 10 | 12 | 14 |
| h_nom1 [mm] | 50 | 55 | 60 | 65 |
| h_nom2 [mm] | 65 | 75 | 85 | - |
| h_nom3 [mm] | 65 | 85 | 100 | 115 |
| h₁ ≥ [mm] | 1+10 | 1+10 | 1+10 | 1+15 |
| l₁ [mm] | 6 | 7 | 7 | - |
| dK [mm] | 20 | 23 | 23 | - |
| T_imp, max [Nm] | 600 | 650 | 650 | 650 |
| max T_inst [Nm] | 65 | 100 | 150 | 250 |
| SW [-] | 13 | 15 | 17 | 21 |
| TX [-] | 40 (SK/US) | 50 (SK) | 50 (SK) | 50 (SK) |
Installation Instructions
1.1 Post-installed fastening in concrete (Cracked/Uncracked, Seismic C1/C2)
This method applies to post-installed fastening in cracked or uncracked concrete, suitable for Seismic Performance Category C1 and C2, as per ETA-15/0352.
- Step 1: Drill the hole to the specified diameter and depth.
- Step 2a, 2b, 2c: Insert the anchor into the drilled hole.
- Step 3: Tighten the anchor using a torque wrench to the required embedment depth (h₁ + 3x d₀) and diameter (dK).
- Step 4: Ensure the torque applied does not exceed the maximum permissible torque (T_imp, max).
- Step 5: Final assembly of the fixture.
1.2 Drilling and Cleaning
- Step 1: Drill the hole to the specified diameter and depth.
- Step 2: Thoroughly clean the borehole using a brush and blower.
- Step 3: Insert the anchor, ensuring it is positioned no more than 10 mm from the surface and 20 mm from the edge. The maximum fixture thickness is denoted as ≤ t_fix, max.
1.3 Fastening
- Step 1: Place the fixture onto the anchor.
- Step 2: Tighten the anchor to the maximum fixture thickness (≤ t_fix, max).
2.0 Fastening with Anchor
- Step 1: Drill the hole.
- Step 2: Clean the borehole.
- Step 3: Insert the anchor to the specified embedment depth (h₁ + 3x d₀).
- Step 4: Tighten the anchor to the maximum permissible torque (T_imp, max).
- Step 5: Check for correct installation using the Fischer Universal Plug (FUP).
- Step 6: Final check of the installation.
3.0 Connector for Strengthening Concrete Structures
This section describes the use of the anchor as a connector for strengthening existing concrete structures via concrete overlay, as per ETA-20/0321.
- Step 1: Drill the hole.
- Step 2a, 2b, 2c: Insert the anchor.
- Step 3: Tighten the anchor to the specified embedment depth (h₁ + 3x d₀).
- Step 4: Ensure the torque applied does not exceed the maximum permissible torque (T_imp, max).
- Step 5: Final assembly.
4.1 Seismic Performance for Concrete
This illustrates the process for seismic performance applications in concrete.
- Step 1: Drill the hole.
- Step 2: Insert the anchor.
- Step 3a: Tighten to maximum permissible torque (T_imp, max).
- Step 3b: Tighten to maximum installation torque (max T_inst).
- Step 4: Final check.
4.2 Screw Anchors for Masonry
This describes the installation of screw anchors for use in masonry bricks (clay, calcium silicate, solid brick, hollow brick), as per ETA-20/0134.
- Step 1a, 1b: Drill the hole.
- Step 2: Insert the anchor.
- Step 3: Tighten the anchor, ensuring it is positioned no more than 10 mm from the surface and 20 mm from the edge, with a maximum fixture thickness (≤ t_fix, max).
- Step 4: Final check.
Performance Data and Certifications
ETA-15/0352 Performance Parameters
This section details the performance parameters for the Fischer UltraCut FBS II 8-14 GVZ/CP anchors according to European Technical Assessment ETA-15/0352. It includes characteristic resistance to tension and shear loads (static and quasi-static), displacements, seismic performance data for categories C1 and C2, and resistance to fire (Class A1). The data is presented for various anchor sizes and configurations (US, SK, TX, STX) and different embedment depths.
ETA-20/0321 Performance Parameters (Concrete Overlay)
This section provides performance data according to ETA-20/0321 for using the anchors as connectors in strengthening existing concrete structures with concrete overlay. It specifies parameters related to existing concrete and concrete overlay, including characteristic resistance, displacements, and resistance to fire.
ETA-20/0134 Performance Parameters (Masonry)
This section details performance parameters according to ETA-20/0134 for screw anchors used in various masonry types (clay, calcium silicate, solid brick, hollow brick). It covers characteristic resistance, displacements, and resistance to fire.
Manufacturer Information
fischerwerke GmbH & Co. KG
Klaus-Fischer-Straße 1
72178 Waldachtal
Germany
Contact:
Tel: +49 7443 12-0
Fax: +49 7443 12-8297
Email: info@fischer.de
Website: www.fischer-international.com
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