Welcome back to Albany County Fasteners - Fasteners 101
I'm Bob and today we're gonna talk about masonry fasteners
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So let's get started.
So I have here a variety of masonry fasteners that I'm going to run through.
I'm just going to work straight across the table here.
This is this basically education for you of different types of fasteners that are used in masonry products.
The first one I have here is a masonry drop-in anchor this is mostly used in poured concrete.
These are commonly installed for high strength applications.
Where you're using a bolt to actually drive into the threaded drop-in.
You can also get these in coil thread.
So if you're a masonry contractor and you want to use coil threaded rod,
which is a more coarse type thread, we have those also.
This tool is a set tool to set the drop-in anchor.
I should also note that these drop-in anchors you can also get them with a lip on them.
This particular one, it has no lip and the reason for the lip
would be to prevent the drop-in anchor from dropping too far into the concrete.
A lot of contractors like that type of a drop-in anchor.
Once you have the drop-in anchor in the hole, you put this tool (in), you hit it with a hammer
and it sets it in position. Then you can drive in
or put your bolt in; whatever you're fastening to the concrete. the next
The next masonry fastener; I have an anchor which is a lag screw anchor.
So this anchor this is almost the same as putting in drop-in. It's just another type of drop in.
Once you have this in place in the concrete you then can screw screw in the lag screw
and then you can see the anchor starts to spread on both sides.
Basically, you're looking at pressure on the walls of the concrete hole.
Both of these fasteners require you drilling a hole that is
equal to the circumference of the drop-in.
So if this was a 1/2" inch outside diameter you drill in a 1/2" inch hole.
Same thing with this drop-in not the size of the bolt that you're going to put in there.
The next (anchor) I have are a masonry, or a term used: Tapcons, concrete screws.
For fixing wood to a block wall, wood to a concrete floor,
metal, whatever you want to fasten. Angles, metal steel angles, many different applications.
These are the probably the most used masonry anchor out there.
You can get these in hex head and Phillips. I'm showing you Phillips head, Phillips flat head.
Obviously if you use a Phillips flat head you can countersink these into the the wood
so that the head doesn't stick up if you have that type of application.
but these are the most used masonry anchors on the market.
Next I have is what they call a threaded rod Sammy (Sammys screw).
Sammy's are used for overhead application typically.
You would put these, drill a hole in your deck above,
you would drive this in with a driver: a nut driver or a socket into the concrete
and then you would put a piece of threaded rod in here and it would hang down.
You cut the threaded rod to the size that you're trying to hang to and that would be the use of a sammys.
Sammy is a brand name out there but there are many other companies that make this product.
The next we have is a hammer driver pin.
This is mostly used; as I've seen these used is for fastening plywood to a concrete floor.
If you have a basement you want the wood flooring down, you want to put a sub-floor down, well
you can use this anchor for that purpose.
How this anchor works is that you would drill a hole to the size of this anchor diameter
and then right through the wood to the concrete, drop this in till
it's flush to the plywood and then hammer down the nail that nail becomes
flush with the top and you're done. It's anchored to the concrete.
it's a very quick way to fasten plywood to many different surfaces to walls many other
things. It's a very handy anchor.
The next one I have is a toggle wing for hollow wall.
If you know you have a hollow block wall and the block is not filled with concrete,
you can use one of these in a hollow wall.
These are also widely used in dry wall. Hanging different products this is not a heavyweight anchor.
I would not use this to hang your TV off a drywall wall.
Okay, if you have a flat screen TV that weighs, you know, I'm just gonna use a number
60 pounds or 70 pounds this is not the proper anchor for that.
It'll probably just rip the drywall right off the wall.
And that has a combo Phillips (Slotted) head so you can use a flat screwdriver or a Phillips
screwdriver to drive that in.
The next one I have is a double expansion shield.
This is made for brick and block. I think mostly this is used in brick.
How this works is you put the screw in. When you drive the screw in it starts to pull on the two ends
and then you could see there it expands and it'll only expand so much.
The reason why they use these in brick and block is not to crack the brick.
A lot of times if you use a wedge anchor or a sleeve anchor the brick will
crack and the end result is you don't have a good holding anchor.
So possibly the anchor could pull out depending on what you're hanging on the substrate.
You can see how that works. To give you an idea, if you have a brick wall in your house
and you want to hang something from it, this is a good anchor to use for that.
The next (masonry anchor) I have here is a sleeve anchor.
This one has a nut. There are different varieties of sleeve anchors.
These are just the parts separating the different parts to a sleeve anchor this is the complete one.
So this would just slide on to here and it's put back on.
All right, that's how it goes together. This application also is made for
brick or block can be used in concrete. It is not as strong as using a wedge anchor.
So the strength of this is for lightweight not heavyweight materials.
This here is another sleeve anchor. This here is a combo head. You have basically a Phillips
or a flathead screwdriver you can drive this in and this is basically countersunk
so if you have a piece of wood that you're fastening something to a concrete
surface this will be flat on the surface versus having a sleeve anchor with a nut
on the top protruding on the top of the wood or metal or whatever you are fastening.
And the last one that I have here is what we call a wedge anchor.
This is also a very highly used anchor out there.
Wedge anchors, basically you drill a hole in the concrete to the circumference of the wedge anchor
if it's 1/4" inch you drill a 1/4" inch hole if it's 3/8"
you drill a 3/8" hole and how this works is when you drill the hole in the concrete
and you lock down on this nut, it starts to pull up this wedge here,
that goes around the bottom diameter, starts to wedge in to this
end and then it tightens up and it doesn't pull out. This is the
strongest concrete anchor to be used. As far as pullout goes and that's our
demonstration of wedge anchors, different hollow wall anchors for masonry product.
Thanks for watching.
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