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Screws for Frames – Fixation Without Plug

Direct fixation of windows and doors
Faster, cleaner, and more efficient.

Solution designed for demanding professionals.

Advantages:

  • No need for a plug
  • Faster installation
  • Reduced stress on the frame
  • Clean and precise fixation
  • Easy adjustment during installation
  • Ideal for fixation near edges

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Window and door frame screws

Why Professionals Choose Frame Screws

Traditional fixing with plugs and anchors requires more installation steps and creates expansion pressure inside masonry.

Window frame screws provide a faster and more precise solution for fixing windows and doors directly into concrete or solid brick.

For installers working with PVC, aluminium or timber frames, concrete frame screws simplify alignment while improving productivity on site.

Window frame screw for concrete and rocks

Screw for window and door frames - countersunk head

Direct fixation in concrete and solid brick without a plug. Fast, clean, and precise installation for windows and doors.

Features

  • No need for a plug
  • Diameter 7.5mm - TX30 drive
  • Zinc-coated tempered steel
  • Adjustable and removable

Advantages

  • Faster installation
  • No expansion stress
  • Clean finish
  • Ideal for fixation near edges
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Available in various lengths for different applications

HOW IT WORKS

Direct fixation in masonry

Permanent fixation

  1. Make a pilot hole (Ø6–6.5 mm)
  2. Insert the screw through the frame
  3. Tighten directly onto the support

The hardened thread cuts into the material, creating a strong fixation without expansion pressure.

MAIN ADVANTAGES

Why choose

  • Faster installation

  • Clean and precise fixation

  • No expansion stress

  • Adjustable (allows corrections)

  • Smaller diameter hole

👉 Ideal for areas close to edges.

TECHNICAL SPECIFICATIONS

Parameters:

  • Diameter:7.5 mm
  • Length:40 – 400 mm
  • Pre-drill:6.0 – 6.5 mm
  • Drive:TX30
  • Material:hardened galvanized steel

COMPARISON

Screws vs other solutions

SolutionSpeedAdjustableExpansionReliability
Frame screwsHighYesNoHigh (solid base)
Plug + screwMediumLimitedYesMedium
Impact anchorsMediumNoYesHigh

👉 Faster and more precise solution.

Installation tips

Good practice

  • Respect the pre-drill diameter
  • Clean the hole before application
  • Use moderate torque - Do not overtighten
  • Confirm alignment before final tightening
  • Ensure sufficient depth
  • Focus only in solid material - avoid voids - Check the type of support
  • Respect the fixing points of the frame

The installation technique is as important as choosing the correct screw.

APPLICATIONS

Where to use

  • Frames (PVC, aluminum, wood)
  • Doors
  • Slats and substructures
  • Light fixings in masonry

SUITABLE SUBSTRATES

Best performance

✔ Concrete

✔ Solid brick

✔ Natural stone

Use with caution

⚠ Hollow brick

Fix only in solid areas or consider an alternative solution.

Common mistakes

Avoid:

  • Use in hollow brick without solid zone
  • Incorrect hole diameter
  • Excessive tightening
  • Insufficient depth

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Choosing the Correct Screw Length

Selecting the correct window frame screw length is essential for secure fixing.

The required length depends on:

  • Frame thickness
  • Installation gap
  • Insulation layer thickness
  • Required embedment depth into concrete or masonry

General guideline

Screw length = frame thickness + gap + embedment depth

Typical applications

ApplicationRecommended Length
Standard PVC window installation72–102 mm
Thicker insulation layers102–132 mm
Deep frame fixing152 mm+

Using the correct length helps ensure strong pull-out resistance and reliable long-term performance.

Common Installation Mistakes

Correct installation is critical for proper window performance and fixing reliability.

Incorrect drill diameter

Using oversized drill bits can significantly reduce holding strength.

Overtightening

Excessive torque may strip the substrate or deform the window frame.

Weak substrate fixing

Avoid fixing into mortar joints or weak hollow sections whenever possible.

Insufficient embedment depth

Too little penetration into concrete or brick reduces pull-out capacity.

Suitable Substrates

Window frame screws are designed for direct fixing into masonry materials.

Recommended substrates

✔ Concrete

✔ Solid brick

✔ Natural stone

✔ Dense blockwork

Hollow brick applications

Hollow brick and perforated masonry require special attention. Fixing quality depends on contact with solid sections of the material.

For weak or unknown substrates, alternative fixing solutions may be recommended.

Professional Installation Advice

For best installation results:

  • Use correct SDS drill bits
  • Respect recommended drill diameter
  • Avoid overtightening
  • Verify substrate condition before installation
  • Use spacers or packers for frame alignment
  • Avoid fixing into mortar joints whenever possible

Correct fixing helps maintain window stability, insulation performance, and long-term durability.

Why Correct Window Fixing Matters

Improper fixing may cause long-term installation problems.

Possible issues:

  • Frame movement
  • Air leakage
  • Reduced thermal insulation
  • Noise penetration
  • Cracked finishing joints
  • Moisture infiltration

Professional frame fixing helps ensure stability, insulation efficiency, and reliable long-term performance.

Improve your installation

A faster, cleaner, and more professional solution for frame fixing.

See Full Range request technical support 

FAQ

Here are some answered questions about screws for window and door frames

No. The screw fixes directly into the material.

Only in solid areas. Otherwise, use another solution.

It depends on the support and depth. It may require technical calculation.

Yes, it allows repositioning.

Typically Ø6–6.5 mm.

Yes.