Koelner/Rawlplug fast installation anchor 8 x 100 mm with a cone head, supplied in a pack of 25, is a plastic expansion dowel designed for secure mechanical fixing in masonry and concrete. The conical profile concentrates expansion forces toward the substrate, creating reliable contact and load transfer. This anchor is intended for mounting fixtures, rails, brackets and light-to-medium loads in construction and renovation projects where straightforward, fast installation is needed.
Advantages
The cone-shaped design ensures consistent radial expansion and firm grip in drilled holes, reducing the risk of slippage under shear and tensile loads. Its 8 x 100 mm dimensions make it suitable for medium-depth anchors while the plastic material provides corrosion resistance and compatibility with a range of screw types. Supplied in a pack of 25, the anchors offer convenient on-site quantity for multiple fixings and repetitive tasks.
Suitable for
- Mounting shelving, light fixtures and small cabinets to masonry or concrete
- Installing rails, handrails and brackets in renovation work
- Fixing trim, conduit clips and cable management components
- General-purpose anchoring where medium load capacity and quick installation are required
When it may not be suitable
This plastic expansion anchor is not intended for heavy structural loads or critical safety applications such as structural beam connections or high-load lifting points. It is also not intended for use in hollow walls or thin-panel systems where there is no solid substrate for expansion to engage. For applications requiring certified heavy-duty anchors, metal mechanical anchors or chemical anchors should be considered.
Key specifications
- Anchor type: plastic expansion dowel with conical head
- Nominal size: 8 x 100 mm (diameter x length)
- Material: durable plastic (corrosion-resistant)
- Pack quantity: 25 pieces
- Recommended substrate: solid masonry and concrete
How to use
Drill a hole of the specified diameter to the required depth in the solid masonry or concrete substrate, clean the hole from dust, and insert the anchor until the cone head is flush with the surface. Select a compatible screw or threaded fastener and drive it into the anchor; the screw will expand the conical profile, forming a secure grip. Ensure the drill and screw sizes match the anchor specifications and apply steady torque to avoid over-tightening.
What to consider before purchase
- Verify substrate type—suitable for solid masonry and concrete, not hollow walls
- Confirm required load capacity and choose metal or chemical anchors for heavy or safety-critical fixings
- Ensure screw diameter and length are compatible with an 8 x 100 mm anchor
- Check quantity required for the project; pack contains 25 anchors
Usage recommendations
For reliable performance, use a clean, correctly sized drilled hole and compatible screws. Avoid reusing anchors after removal; replace with a new anchor from the pack to maintain holding capacity. When in doubt about load requirements, consult a structural or fastening specialist to select a suitable anchor type.
