Fischer Adjustment Screw - 5 x 90 - TX25
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Product Information
Full details
The Fischer FAFS 5x90 TX25 adjustment screw is designed for carpenters, frame installers, and DIY enthusiasts who require precise, stepless leveling of wooden structures and frames. Its key benefit is the ability to adjust the distance between an attachment part and a substrate with high accuracy without the screw head rotating or shifting position. Please note that for hardwoods or thick boards over 30mm, pre-drilling a 6mm hole is essential to prevent splitting.
All features
| Model Part Number | 5 x 90 TX25 |
|---|---|
| Brand | fischer |
Extended Product Information
FAQs
Can this screw be used in brick or concrete?
Yes, but you must use a Fischer DuoPower 6x50 or UX 6x50 wall plug and pre-drill a 6mm hole.
Is the setting tool included with the box?
The setting tool is a specialized component usually sold or provided separately from the screw pack; check your specific purchase details.
What is the primary advantage of the non-rotating clip?
It ensures the screw head does not turn within the attachment material, which keeps the piece perfectly aligned and prevents surface scratching.
Can I remove the screw once installed?
Yes, the thread on the clip is specifically designed to allow for easy disassembly by turning the screw anti-clockwise with the bit and setting tool.
Do I need to pre-drill every time?
Pre-drilling is recommended for hardwoods, boards over 30mm thick, and when working near the edges of boards to avoid splitting.
Troubleshooting
Wood splitting during installation
Ensure you have pre-drilled a 6mm diameter pilot hole, especially when working near edges or with dense hardwood.
Screw head is not sitting flush
Verify that the specialized setting tool is correctly attached to the TX25 bit and that sufficient downward pressure is applied during initial driving.
Difficulty in adjusting the distance
Ensure the setting tool is removed before adjustment; use only the TX25 bit for the fine-tuning rotation phase.
Pros and Cons
Pros
- Extremely precise alignment control
- Prevents surface damage by keeping the screw head stationary
- Fast installation due to PowerFast technology
- Durable metal construction suitable for timber framing
- Easily removable via the clip thread
Cons
- Requires specific setting tool for optimal installation
- Pre-drilling recommended for hardwoods and edge proximity
- Requires careful adherence to specific torque settings for best results
Setup, Compatibility & Care
For installation, ensure you have a standard drill/driver with a TX25 bit and the designated FAFS setting tool. The screw is intended primarily for wood-to-wood connections but can be used in masonry when combined with a suitable anchor like the Fischer DuoPower 6x50. Always perform a 6mm diameter pre-drill when working with hardwoods or boards exceeding 30mm thickness. To care for your installation, ensure the assembly is kept dry in exterior applications to maintain the integrity of the wood and metal connection, and always check the ETA-19/0175 approval documentation for structural loading requirements.