How To Use Corefix Fixings
Shu Manwill
Corefix Connect 100 heavy duty dot & dab wall fixing, easy to install no special tools required, just drill, driver & hammer. Patented system that includes an engineered steel core that bridges the cavity and transfers the load to the blockwork behind. 100mm screw length, 10mm maximum fixture depth, 100kg safe working load using 4 fixings. 24 box.
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Corefix 120 Dot and Dab Wall Fixings are the trusted heavy-duty dot and dab wall fixing solution. With a 120mm screw length, the Corefix 120 is ideal for securing deeper fixtures of between 10mm and 30mm thick, such as timber battens, shelves and cabinets. Using 4 of these fixings will provide up to 100kg safe working load.
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Made the appropriate holes with the recommended dirll bit of 10mm diameter. When attaching the screws and gently screwing them into the core & plug, some bite. Others just end up spinning while the plug stays in place. So the screw just chews into the plug and when i pull the whole the screw away from the wall, the entire plug and bracket just comes away from the wall. So the plug is not doing what it should.
I had the suspicion that the plug was too short, so I also cut the head of the plug off and pushed the plug & core 30-50mm inside the hole. Was hoping more of the plug would be in the brick. The result was equally unsuccessful.
Tend to agree with @MikeGrahamT21 but you could try a 9mm drill into the brick (10mm clearance hole to get the plug through the plaster). It can be a matter of feeling the resistance of materials as you drill
Found what i was talking about. With this tool the fixing pulls tight without spinning and so there is no damage to the plasterboard. Then you remove the screw and use it for your radiator. Highly recommended
I also like those fixings but mine came with a spanner that stopped the plug spinning in the plasterboard. However my new home had a coat rack fixed with these on a dot and dab wall, typically too many coats and the whole lot fell off complete with chunks of plasterboard ?, fixed by filling the holes with plaster and long screws and rawlplugs into the block work. (Radiators full of water are heavy!!!).
My mention of cubicles above: the specialist had exclusion clauses re fixings. I bought the fixings and setting too and wrote a letter taking responsibility. The fitter was impressed, saying this was the best system he had used. I'm not sure I got the tool back.
In terms of expense, I'm not too fussed. The cost of fixing the wall, water leak on the floor and broken copper pipes far outweighs the initial cost. Thought splashing out on the Corefix screws was the answer but it wasn't meant to be as straightforward as that.
So the first 3 layers of my 1950s wall are plaster on insulated plasterboard (PB + 40mm PR bonded at factory). Beyond that, it's wet plaster, but as mentioned by another poster, it could be 3mm or it could be as much as 20mm.
How does Corefix work?
Corefix bridges the gap between the plasterboard and the solid wall behind with a steel core fixing. This stops the plasterboard itself being crushed and collapsing into the void (as typically happens with other common cavity wall fixings when placed under pressure). With Corefix the load is supported by the solid wall behind the plasterboard cavity. All of the individual Corefix components are engineered to a high quality and the Corefix steel core is plated for corrosion resistance.
Used as an alternative to the type of plasterboard fittings that expand within the gap behind the plaster - I believe these will be more reliable both at fitting and staying put in the long term so long as there is a solid wall behind/dot dab as they are designed for.
Only really issue is how large the diameter is, both in meaning the head of the screw is relatively large for some applications (only just squeezed into the curtain track fittings we had) and that the diameter of the holes required can take up relatively large amount of space (drilled holes almost merging together if attaching a small fitting that requires 2 screws like I was in once case). In fact in the latter scenario I trimmed a little of the red "lip" from the plastic to allow the two neighboring fixings to sit flush, closely together.
Corefix is an incredibly robust and fast fixing for drylined, dot and dab, cavity walls. Required to obtain a secure and robust fixing for most modern plasterboard walls that have blockwork behind a plasterboard outer face. A three-part set comprising of a patented plug, steel core and 100mm screw Designed and tested to 250kg on 4 x fixings for all brick & block types. It offers a safe working load of up to 100kg and is suitable for hanging bulky items like large-screen LED / LCD Television, wall cabinets, Heating Boilers, wooden and metal shelves, radiators, and soundbar.
Dot and Dab Corefix is an incredibly robust and fast fixing for dry lined, dot and dab, plasterboard walls. Wall brackets secure using these robust fixing for most types of wall, plasterboard wall that have brick work behind a plasterboard outer face. They are not designed to attach the bracket to Wooden studs.
A three-part set comprising of a patented plug, steel core and 100mm screw Designed and tested to 250kg on 4 x fixings for all brick & block types. It offers a safe working load of up to 100kg and is suitable for hanging bulky items like large-screen LED / LCD telly, wall cabinets, Heating Boilers, wooden and metal shelves, radiators, and sound bar. It is easy to drilled holes
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