Celo ceiling/furrow hollow wall anchor BT plus M5 – pack of 30 (model 9Y5BTPLO)

Celo BT plus M5 hollow wall anchor (pack of 30) is a fastening solution designed for secure installation in hollow or thin substrates such as plasterboard, cavity ceilings and hollow concrete blocks. Each anchor accepts a standard M5 screw and is engineered to expand or lock inside the void, creating a reliable fixing point for fittings, light fixtures and small brackets without the need for through-bolting.

Advantages

The anchor set is supplied in a compact pack of 30 items suitable for multiple installations. The BT plus design provides a controlled expansion or locking action in hollow materials, delivering consistent load-bearing performance for light to medium loads. Compatibility with standard M5 screws simplifies installation and replacement of mounted items. The geometry of the anchor reduces the risk of rotation and pull-out once set in the cavity.

Suitable for

• Plasterboard walls and partition systems
• Cavity ceilings and suspended ceiling panels
• Hollow concrete or cellular blocks
• Mounting light fixtures, small shelves, curtain rails and brackets
• Temporary or semi-permanent installations where a non-through fixing is preferred

When it may not be suitable

This anchor is intended for hollow or thin substrates and for applications using M5 screws. It is not suitable for heavy structural loads or for use in solid masonry, solid concrete or very thin brittle materials where a different type of anchor or through-bolt would be required. For high-load applications, chemical anchors or heavy-duty mechanical anchors should be considered.

Key specifications

• Anchor type: hollow wall / cavity anchor with expansion/locking action
• Thread size accepted: M5
• Pack quantity: 30 pieces
• Intended substrate: hollow plasterboard, cavity ceilings, hollow concrete blocks
• Typical application load class: light to medium loads (installation-dependent)

How to use

Drill an appropriately sized hole through the facing material to the depth recommended for hollow wall anchors. Insert the anchor into the hole until the flange sits flush with the surface. Drive an M5 screw into the anchor; as the screw engages, the anchor expands or locks within the cavity, forming a secure fixing. Tighten the screw to hold the fixture in place, taking care not to over-torque, which can damage the substrate or the anchor. If removal is required, withdraw the screw and, where possible, extract or replace the anchor.

What to consider before purchase

• Confirm the substrate type (hollow plasterboard, cavity ceiling, hollow block) and its thickness
• Ensure the planned load is appropriate for a hollow wall anchor rated for light to medium loads
• Select compatible M5 screws of suitable length and head type for the fixture and substrate thickness
• Check whether a through-bolt or heavy-duty anchor is required for higher loads

Usage recommendations

Use a drill bit recommended for the anchor diameter and check hole alignment before installing multiple anchors. Where possible, distribute loads across several anchors and follow manufacturer torque guidance for M5 screws to maintain performance and avoid damage to the substrate.