Concrete screw KOELNER 7.5x152 PP ZN TX30
Koelner frame fixing screw for concrete — flat‑head TX30, 7.5×152
Specialised concrete screw for secure installation of window and door frames; flat head for flush fitting and a non‑expanding design that reduces stress on the substrate while providing high load capacity.
Key Benefits
- Flat head allows flush installation with linings and trims
- Non‑expanding fastening exerts less stress on the substrate during installation
- High load capacity despite a relatively small drill‑hole diameter
- TX30 drive ensures reliable torque transfer during fitting
Designed specifically for mounting window and door frames
Applications
Ideal for fixing frames and fittings where low substrate stress and flush finishing are required.
- Installing external and internal door frames
- Mounting architraves and casings flush with the frame
- Replacement and renovation of window/door installations
Securing window frames to concrete or masonry
What to Consider When Choosing
- Choose a flat‑head screw when a flush finish with linings is needed
- Prefer non‑expanding fasteners when you need to minimise stress on the substrate
- Ensure the drive type (TX30) matches your tools
- Verify screw length and diameter listed for your frame thickness
Confirm the substrate type (concrete or masonry) for compatibility
Specifications
- Brand: KOELNER
- Size: 7.5×152 (from product name)
- Head: flat
- Drive: TX30
- Non‑expanding fastening
- Finish/marking from name: PP ZN
Product type: concrete screw
Why Buy from SityPro
- Competitive price and transparent product information
- Fast ordering and delivery options to Estonia and Finland
- Customer support for technical questions and fitting advice
- Reliable stock and convenient returns if needed
Easy to buy online with clear product features and images
Description provided by sitypro.com
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