Join metal parts, with a nut or in a tapped hole, so they can be taken apart.

Hex Allen keys, T-handle, Fervi 0400/045
Also known as: Allen wrench
Key features
- Hex opening (mm)4,5
- Size (mm)4,5
- Dimensions (mm)180 x 90
- Gross weight (kg)0,06
- Packaging dimensions (mm)180x90x12h
What it is
Hex Allen keys, T-handle, Fervi 0400/045. Key specifications: hex opening (mm) 4,5, size (mm) 4,5, dimensions (mm) 180 x 90.
A hex key is an L- or T-shaped male key, hexagonal or Torx, that fits into the recess in the screw head to tighten or loosen it.
What it is for
Used for industrial maintenance of plant and machinery, in mechanical maintenance of machinery and plant, during scheduled shutdowns or breakdowns and for assembly work.
How to use it
Choose the exact size and profile of the recess and insert the key fully so as not to damage the head. To break loose or tighten, put the short arm in the screw and lever on the long arm; for fast driving or awkward spots, use the long arm or the ball end. Do not extend the leverage with tubes, and replace the key when its edges are rounded.
Where it is used
- Building services
- Mechanical engineering industry
- Mechanical workshops
Technical data
- Hex opening (mm): 4,5
- Size (mm): 4,5
- Dimensions (mm): 180 x 90
- Gross weight (kg): 0,06
- Packaging dimensions (mm): 180x90x12h
Who it is for
Designed for electricians, plumbers, industrial maintenance technicians and mechanics.
Related products
- Hex Allen keys, T-handle, Fervi 0400/05
- Hex Allen keys, T-handle, Fervi 0400/04
- Set of polished chrome open-end spanners Fervi 0201 — from the category Hand Tightening Tools
- Hex bolts TED 12x80 — from the category Bolts and Metric Screws
- PZ cross-head anti-slip bits Fervi — from the category Bits
- Browse the whole category: Hex Keys (Allen Keys)
Before you order
In your request, please state the dimensions 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 5
| Hex opening (mm) | 4,5 |
|---|---|
| Size (mm) | 4,5 |
| Dimensions (mm) | 180 x 90 |
| Gross weight (kg) | 0,06 |
| Packaging dimensions (mm) | 180x90x12h |
Compare with similar models
Technical data declared by the manufacturers. An empty cell means the figure is not declared.
| Feature |
This model
Hex Allen keys, T-handle, Fervi 0400/045
|
Hex Allen keys, T-handle, Fervi 0400/05
|
Hex Allen keys, T-handle, Fervi 0400/04
|
Hex Allen keys, T-handle, Fervi 0400/06
|
|---|---|---|---|---|
| Brand | Fervi | Fervi | Fervi | Fervi |
| Hex opening | 4,5 mm | 5 mm | 4 mm | 6 mm |
| Size | 4,5 mm | 5 mm | 4 mm | 6 mm |
| Dimensions | 180 x 90 mm | 180 x 90 mm | 180 x 90 mm | 210 x 105 mm |
| View product → | View product → | View product → |
The perfect setup for this job
Everything you need in one place, from functionality to safety.
For the job
Lubricate, free up and protect against rust when sprayed directly onto the part.
Keep tools and small parts organised and secure during transport.
Tighten and loosen nuts and bolts with the open end or the polygonal ring end.
For safety
Protect hands from abrasion, dirt, liquids and minor cuts while keeping a firm grip.









