Metal expansion plug

[nikoman]

Hello

I have ordered a chin-up bar for my basement gym (the kind you hang from) that needs to be mounted on a concrete wall. It came with a type of metal anchor I haven't seen before. The product is from England via Amazon. No instructions were included.

I assume they expand by the anchor being pushed against the screw head in the wall when you tighten the nut. Correct?

Does it mean the drilled hole must be exactly the right depth and that the metal anchor stays in the wall permanently?

Are these available on the Swedish market so I can compare?

 

[S0MMER]

Hello

I have ordered a chin-up bar for my basement gym (to hang from) which is to be mounted on a concrete wall. I received metal plugs I've never seen before. The product is from England via Amazon. No instructions.

I assume they expand by the plug being pushed into the screw head in the wall when you tighten the nut. Correct?

So the drill hole has to be exactly deep and the metal plug stays in the wall forever?

Are these available on the Swedish market so I can compare?

They are called expansion bolts, similar ones are available in Sweden. If this is to be mounted between two walls, I would use a simpler plug, I think those are a bit excessive. How many attachment points on each side?

 

[Mattias Andreasson]

It can be a variant where you insert the plug into the hole, take a don and hit a small pin that sits at the bottom of the thread side, which sends down a cone that expands the plug.

 

[Keld]

Looks like a bolt anchor! Is there a metal plug in the hole?

 

[tergo]

such were used in early 1900s in Sweden
nowadays, wedge anchors are used W ED S - Wedge anchors for fastening in concrete - YouTube
or Concrete anchors - YouTube

 

[nikoman]

Thank you for the response. I bought regular plastic plugs and screws. 7.5mm thick should hold 180kg each and I anchored the bar with eight of them. If my strength training becomes _really_ successful, I'll have to buy larger ones later.

 

[S0MMER]

Thanks for the response. I bought regular plastic plugs and screws. 7.5mm thick should handle 180kg each and I anchored the strip with eight of them. If my strength training becomes _really_ successful, I guess I'll have to buy bigger ones then.

Would have done the same!

 

[mugatu]

If you have an impact wrench, you can use concrete screws. They can be knocked loose if you want to remove everything and fill evenly.