Fischer PA 4 M6/7.5 brass expansion fixing for thin panels and solid substrates 200 pieces
Product code: 00050484
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Product description
Fischer PA 4 M6/7.5 – brass expansion fixing 200 pieces
Fischer PA 4 M6/7.5 is a short brass expansion fixing with an M6 internal thread, designed for pre-positioned installation in thin building panels and solid building materials. Variant article 50484 is only 7.5 mm long, so it requires a relatively shallow anchoring depth.
This offer includes one complete factory box of Fischer PA 4 article 50484 containing 200 pieces.
What is Fischer PA 4 M6/7.5 used for?
The PA 4 fixing can be used for applications including handles, angle brackets, furniture fittings and lamps. Fischer indicates use in wood-based building boards, plastic panels, concrete, solid brick, solid sand-lime brick and natural stone with a dense structure.
The short length of the M6/7.5 variant makes it particularly suitable for applications where the available anchoring depth is limited. For projects requiring many repeated fixing points, the 200-piece pack helps maintain one consistent fixing variant throughout the installation.
Key benefits of Fischer PA 4
- short brass fixing with a length of 7.5 mm,
- M6 internal thread for standard metric screws,
- low required anchoring depth,
- designed for thin building panels and solid substrates,
- textured outer surface helping prevent rotation in the drill hole,
- pre-positioned installation,
- front section expands when the screw is tightened,
- factory pack of 200 pieces for larger and repetitive installation work.
How does the PA 4 brass fixing work?
Fischer PA 4 is designed for pre-positioned installation. The fixing is inserted into the prepared drill hole before the fixture is positioned. When a metric screw is tightened, the front part of the brass fixing expands in the substrate and creates a mechanical anchorage.
The specially shaped outer surface helps reduce rotation of the fixing in the drill hole while the screw is being tightened.
How should the screw be selected for Fischer PA 4 M6/7.5?
The PA 4 M6/7.5 variant has an M6 internal thread and is intended for use with a standard M6 metric screw selected according to the specific application.
For a fixing installed flush with the surface, Fischer gives the following rule for the minimum screw length: fixing length + fixture thickness = minimum screw length.
Installation of Fischer PA 4 M6/7.5
For article 50484, the nominal drill diameter is 8 mm and the minimum drill-hole depth is 7.5 mm. The fixing itself is also 7.5 mm long.
These values apply to hard building materials. In older Fischer technical documentation, the manufacturer indicates that in lower-strength materials the drill diameter may need to be reduced by 0.5 mm. The drill hole should therefore be selected according to the actual substrate and current manufacturer installation guidance.
Technical data – Fischer PA 4 M6/7.5
| Parameter | Value |
|---|---|
| Manufacturer | fischer |
| Series | PA 4 |
| Variant | PA 4 M6/7.5 |
| Manufacturer article number | 50484 |
| Product type | brass expansion fixing with metric internal thread |
| Material | brass |
| Installation method | pre-positioned installation |
| Drill diameter d0 | 8 mm |
| Minimum drill-hole depth h1 | 7.5 mm |
| Fixing length l | 7.5 mm |
| Thread | M6 |
| Screw insertion depth | 7.5 mm |
| Effective anchoring depth | 7.5 mm |
| Example substrates | wood-based panels, plastic panels, concrete, solid brick, solid sand-lime brick, dense natural stone |
| Packaging | folding box |
| Quantity | 200 pieces |
Storage
The manufacturer does not specify any special storage conditions or temperature range for this mechanical fixing.
Why choose the M6/7.5 variant?
The M6/7.5 variant combines an M6 thread with a very short 7.5 mm body. It is therefore intended for applications where a metric screw fixing is required but only a limited anchoring depth is available.
The PA 4 range also includes longer variants and other thread sizes. They should not be treated as identical replacements because they change the required anchoring depth and fixing geometry.
FAQ – Fischer PA 4 M6/7.5
Is PA 4 M6/7.5 suitable for thin panels?
Yes. Its short 7.5 mm length and anchoring depth make the system particularly suitable for thin building panels.
Can the fixing be used in concrete?
Yes. Fischer lists concrete as one of the substrates for the PA 4 system, together with solid brick, solid sand-lime brick and other solid materials.
What drill bit is required?
The nominal drill diameter for PA 4 M6/7.5 article 50484 is 8 mm.
What thread does the fixing have?
Variant 50484 has an M6 internal thread and works with standard M6 metric screws selected according to the application.
How deep must the drill hole be?
The minimum drill-hole depth for this variant is 7.5 mm.
Is the fixing supplied with a screw?
PA 4 is an internally threaded fixing designed for use with a standard metric screw. The screw is selected according to the fixture and application.
What can PA 4 be used for?
Fischer indicates applications such as handles, angle brackets, furniture fittings and lamps. The system can be used in suitable thin panels and solid building materials.
How many pieces are included in this offer?
This product page covers one complete factory box of Fischer PA 4 M6/7.5 article 50484 containing 200 pieces.
Product safety
Manufacturer
FISCHER POLSKA SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Albatrosów 2
30-716 Kraków, Poland
Responsible person in the EU
FISCHER POLSKA SPÓŁKA Z OGRANICZONĄ ODPOWIEDZIALNOŚCIĄ
Albatrosów 2
30-716 Kraków, Poland
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