Universal wall plug UNO 6 x 28 mm from Koelner/Rawlplug is a compact fastening solution supplied with matching screws in a pack of 100. The plug is designed to create a secure anchor in a variety of substrates including concrete, solid brick, aerated concrete and many hollow or mixed walls. Its geometry and material selection provide consistent expansion and grip for light to medium loads encountered in general construction, interior fittings and everyday mounting tasks such as shelves, cabinets and fittings.
Advantages
The UNO universal wall plug combines a versatile shape and controlled expansion to deliver a stable fixing across different base materials. Supplied with screws sized to match the plugs, the set reduces the need to source separate fasteners and simplifies installation. The plugs are compact, economical in bulk packaging and suitable for repetitive mounting work, offering predictable load performance for typical household and light commercial applications.
Suitable for
- Fixing shelves, cabinets and small furniture to masonry and aerated concrete
- Mounting light fittings, rails and bathroom accessories
- General interior fittings and light construction tasks
- Use where quick, repeatable anchors are required in mixed substrates
When it may not be suitable
This universal plug is intended for light to medium loads and is not designed for heavy structural applications or safety-critical anchors such as load-bearing steel supports or heavy machinery. For thin plasterboard without backing or very soft substrates, alternate specialist anchors designed specifically for hollow-wall fixings should be considered.
Key specifications
- Plug dimensions: 6 x 28 mm
- Pack quantity: 100 plugs with matching screws
- Suitable substrates: concrete, solid brick, aerated concrete, mixed-solid and hollow walls
- Load class: light to medium loads (typical household and interior use)
- Material characteristics: engineered plastic designed for controlled expansion and grip
How to use
Drill a hole with the correct diameter for a 6 mm plug to the required depth, clean the hole of dust, insert the UNO plug flush with the surface and then drive the supplied screw until the plug expands and grips the substrate. Ensure the screw length and head type are appropriate for the fixture thickness. For hollow or irregular substrates, verify anchor performance on a sample fix before completing the installation.
What to consider before purchase
- Confirm substrate type and condition (solid masonry, aerated concrete, hollow wall)
- Check required load capacity for the intended fixture
- Verify drill bit diameter and screw length compatibility with the plug
- Assess whether a specialised anchor is needed for very heavy or safety-critical applications
Usage recommendations
Use sharp masonry drill bits and remove dust from drilled holes to ensure consistent expansion. For repeated professional installations, store plugs in a dry place and match screw size to fixture thickness to avoid over- or under-tightening. When in doubt about load requirements, consult technical tables or choose a higher-capacity anchor system.
