Drill concrete, brick and stone for wall plugs and anchors using a hammer drill.

Undercut Anchor Zykon FZA-I, Fischer
Key features
- Hole diameter d0 (mm)12
- PackBox
- Pieces per pack25
- ThreadM10
- ETA approval98/0004
- Concrete class20/25
What it is
The Fischer ZYKON FZA-I undercut anchor is a high-performance fixing that uses the undercut principle for a controlled-expansion anchorage in concrete. With an M10 thread, it requires a hole diameter d0 of 12 mm and is suitable for C20/25 concrete, with European Technical Assessment ETA 98/0004. It is supplied in a box of 25 pieces.
The undercut anchor is a steel anchor that engages in an enlargement of the hole at the bottom, to withstand very high loads and also dynamic stresses, especially in concrete.
What it is for
Used for anchoring shelves, brackets and structures to walls, for mechanical fixing of structures and components to walls, ceilings and floors and for structural fixings, where the fixing is load-bearing and must be calculated.
How to use it
Drill the hole with the drill bit indicated, clean it carefully, insert the anchor and expand it or make it engage in the undercut with the dedicated tool. Fix the part and tighten the nut to the stated torque. Follow the installation instructions strictly.
Where it is used
- Industrial construction
- Residential construction
- Building services
Technical data
- Hole diameter d0 (mm): 12
- Pack: Box
- Pieces per pack: 25
- Thread: M10
- ETA approval: 98/0004
- Concrete class: 20/25
Who it is for
Designed for electricians, metal fabricators and plumbers.
Related products
- Undercut Anchor Zykon FZA-I, Stainless A4, Fischer
- Undercut Anchor Zykon FZA-I (Female Version, Galvanised), Fischer
- Hex-shank drill bits Fischer — from the category Drill Bits for Granite, Masonry and Concrete
- Cordless rotary hammer SDS-Plus XR lithium 18V 4.0Ah DeWalt DCH253M2-QW — from the category Rotary Hammers
- Set of satin chrome combination spanners Fervi 0073 — from the category Combination Spanners
- Browse the whole category: Heavy-Duty Anchors
Before you order
In your request, please state the diameter and the quantities required, so we can give you the right quotation first time.
For prices and availability, request a quote from AMES Srl: we will reply with our quotation, delivery times and, where needed, an equivalent technical alternative.
Specifications 6
| Hole diameter d0 (mm) | 12 |
|---|---|
| Pack | Box |
| Pieces per pack | 25 |
| Thread | M10 |
| ETA approval | 98/0004 |
| Concrete class | 20/25 |
Compare with similar models
Technical data declared by the manufacturers. An empty cell means the figure is not declared.
| Feature |
This model
Undercut Anchor Zykon FZA-I, Fischer
|
Undercut Anchor Zykon FZA-I, Stainless A4, Fischer
|
Undercut Anchor ZYKON FZA, Stainless A4, Fischer
|
|---|---|---|---|
| Brand | Fischer | Fischer | Fischer |
| Hole diameter d0 | 12 mm | 12 mm | 12 mm |
| Pack | Box | Box | Box |
| Pieces per pack | 25 | 25 | 20 |
| Thread | M10 | M12 | M10 |
| ETA approval | 98/0004 | 98/0004 | 98/0004 |
| Concrete class | 20/25 | 20/25 | 20/25 |
| View product → | View product → |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Drill concrete, masonry and stone by combining rotation and hammer action.
Tighten and loosen nuts and bolts with the open end or the polygonal ring end.
Drill and chisel concrete and masonry with the quick-release fitting of light rotary hammers.







