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

Countersunk head screw in plain steel class 10.9 Unifix
Key features
- MaterialRaw steel
What it is
The Unifix class 10.9 plain steel nuts and bolts range comprises high-strength fasteners made of plain steel, with strength class 10.9 identifying their high mechanical load and holding properties. It complies with CE marking under EU directives, guaranteeing conformity with the standards required in structural applications.
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 plant engineering
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Material: Raw steel
Who it is for
Designed for metal fabricators, plumbers, industrial maintenance technicians and mechanics.
Related products
- White zinc-plated screw class 4.8 Unifix
- Metric TPS screw with nut Unifix
- Flanged nut Unifix — from the category Hex Nuts
- Flat washer, galvanised, white, Unifix — from the category Flat Washers
- Combination wrench (STMT95791-0) Stanley — from the category Combination Spanners
- Browse the whole category: Bolts and Metric Screws
Before you order
Tell us the quantities you need and the intended use: if there is a more suitable version, or an equivalent available sooner, we will let you know.
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 1
| Material | Raw steel |
|---|
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.




