FISCHER hollow wall anchor DuoHM 6x55 S PH TX, pack of 4

FISCHER hollow wall anchor DuoHM 6x55 S PH TX is a cavity fixing designed for secure fastening in hollow or lightweight building materials. It is 6 x 55 mm in size and supplied in a pack of four. The anchor combines a collar and sleeve geometry that expands or clamps inside cavities to provide holding strength for light-to-medium loads. The Phillips head with Torx-compatible drive enables accurate insertion and torque transfer during installation.

Advantages

The DuoHM 6x55 S PH TX offers a compact design suitable for limited-depth cavities and standard drywall or hollow brick applications. Its combined drive system allows use with common Phillips screwdrivers and Torx bits, improving control and reducing cam-out. Supplied in a small pack of four, it is convenient for targeted jobs and maintenance tasks where only a few anchors are required.

Suitable for

• Mounting light shelves and towel rails in drywall or hollow block walls
• Fixing electrical boxes, conduit clips or cable trays in cavities
• Hanging picture frames, mirrors or decorative fittings in hollow materials
• Securing small fixtures where through-bolt access is limited

When it may not be suitable

This anchor is intended for hollow or cavity building materials and is not designed for use in solid concrete, solid brick, natural stone, or dense masonry where plug-type or expansion anchors are required. It is sized for light-to-medium loads; for heavy loads, structural fixings or specialist anchors should be chosen.

Key specifications

• Anchor type: hollow wall/cavity anchor with expanding/clamping action
• Dimensions: 6 mm diameter, 55 mm length
• Head type: Phillips head with Torx-compatible drive
• Pack contents: 4 anchors
• Application: interior mounting in hollow boards, drywall, hollow blocks

How to use

Drill a hole of the appropriate diameter for a 6 mm anchor into the hollow material, taking care to avoid electrical cables and pipes. Insert the anchor into the drilled hole until the head sits flush with the surface. Drive the screw using a Phillips or Torx bit; the anchor will expand or clamp inside the cavity to develop holding strength. Ensure the screw length and fixture thickness are compatible with the anchor length to achieve proper engagement.

What to consider before purchase

• Verify the substrate type is hollow or cavity material such as drywall, hollow block, or similar
• Confirm the 6 x 55 mm dimensions suit the fixture thickness and available cavity depth
• Check the required load capacity for your application; use heavier-duty anchors for larger loads
• Ensure compatible screwdriver bits (Phillips and Torx) are available for installation

Usage recommendations

For reliable results, use a drill with the recommended bit diameter for a 6 mm anchor, avoid over-tightening the screw, and test the mounted fixture before applying full load. When in doubt about load requirements or substrate condition, consult a structural specialist or select a fixing designed for higher capacities.