Complete the fixing when screwed onto bolts, screws and threaded rods.

Cylindrical head screw ZKS Fischer
Key features
- Length (mm)20
- Pieces per pack200
- ThreadM8
What it is
Cheese-head screw ZKS Fischer is a fastening element with an M8 thread and a length of 20 mm, designed for tightening in prepared systems and components. The cylindrical head offers a compact, neat bearing surface, while the pack of 200 pieces meets the needs of sites and workshops with high consumption.
Metric fasteners include metric-thread screws and bolts, spacers and small parts such as split pins, for joining parts with a nut or into a tapped hole.
What it is for
Used for assembling steel structures, in steel fabrication, from cutting to assembly and for mechanical fixing of structures and components to walls, ceilings and floors.
How to use it
Choose diameter, length, property class and material, zinc-plated or stainless, according to the joint and the environment. Insert the screw into the clearance or tapped hole, add the washer and tighten the nut with a spanner of the correct size, without exceeding the specified torque. Insert split pins through the hole in the pin or bolt and bend them over to stop the nut from working loose.
Where it is used
- Industrial construction
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Length (mm): 20
- Pieces per pack: 200
- Thread: M8
Who it is for
Designed for electricians, metal fabricators, plumbers and industrial maintenance technicians.
Related products
- Hex head screw SKS A2/A4 Fischer
- Cylindrical head screw TCEI Fischer
- Hammer-head nut FCN AL Fischer — from the category Hex Nuts
- Wide washer for screw FBS 10 Fischer — from the category Flat Washers
- Set of satin chrome combination spanners Fervi 0073 — from the category Combination Spanners
- Browse the whole category: Bolts and Metric Screws
Before you order
In your request, please state the length 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 3
| Length (mm) | 20 |
|---|---|
| Pieces per pack | 200 |
| Thread | M8 |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Spread the load under nuts and screws and stop the fixing coming loose.
Tighten and loosen nuts and bolts with the open end or the polygonal ring end.
Drive and remove screws with a hex or Torx recess, even in tight spaces.




