Concrete Anchors. How to Install Concrete Anchors. GOOD ONE!

Concrete Anchors. How to Install Concrete Anchors. GOOD ONE!

[music] 00:11 Speaker 1: G’day knuckleheads, Uncle
Knackers here, and today I’d like to show you how to attach timber to a solid masonry
surface or concrete. Come on, let’s go. Come on chop, chop. 00:27 S1: So the tools you need for this job
are a dust mask for the concrete dust that you’ll be bringing up, some goggles for eye
protection, some hearing protection, a hammer drill or a rotary drill, I’ll explain the
difference in a minute, a masonry bit, a DynaBolt or a through bolt depending on which country
you’re from, a hammer, spanner or a shifting shipping spanner or a torque wrench and a
brush and pan. 01:03 S1: Now before I do the demo, I just
wanna discuss the choice of drill when drilling into concrete. You have two options, you have
a pure hammer drill or the latest sort of hammer drills are rotary hammer drills which
are ones like this, and they are far superior to a standard hammer drill. And they come
with different drill bits. This is your standard hammer drill bit, see how the shaft’s all
smooth and the jaws of the drill just clamp around it. But your SDS drill bit which is
used for a rotary hammer drill is like this. See the different grooves and slots. It’s
designed for a much more efficient method of drilling into concrete. And if you can
afford to get one, and it costs about 60 bucks, 60, 70 bucks, you don’t need to go for the
big $600 job; this one here costs you 60 bucks. And I’ve had it for about, I don’t know, five
to six years, so it’s well worth the investment. 02:03 S1: Okay, let’s talk about the anchors.
Now the anchor that I use to attach the timber to the concrete is this DynaBolt or Through
Bolt, as it’s known in some countries and all it is, is a loose sleeve… Is a loose
sleeve with a nut on the end of the bolt. And as you do… Can you see that? As you
do the nut up the expandable wings spread out, therefore attaching your timber to the
concrete. Pretty ingenious. And the size of the DynaBolt, you might be able to see it
there, it says 10 mil. So if it says 10 mil on your DynaBolt or your Through Bolt, that’s
the size drill bit you use. So with my SDS drill bit for my rotary hammer drill you’ll
see here somewhere where it says 10 mil. That’s the size drill bit you use. Okay lets stop
mucking around and get the demo under way. Okay, come on. 03:15 S1: Alright just quickly before we do
this demo, how deep do you drill your hole? Good question, glad you asked it. DynaBolt
goes through your piece of timber and into your concrete. We want the hole to be drilled
about 10 mil deeper than the length of that DynaBolt there. That way if there’s any debris
left inside the hole, this DynaBolt isn’t going to bottom out and stick out like that.
We don’t want that to happen. Okay let’s do this demo. 03:52 S1: The first thing you need to do is
you need to position your timber. Now I’ve got a line marked down the slab here, so I’ll
position my timber up against that line. That’s where I want it to go. Now make sure you’ve
got your hearing protection on, your goggles and your dust masks. Some guys like to pre-drill
their holes, personally with a rotary hammer drill going through pine, I don’t think you
really need to. So this is how simple it is. Drill on top of the timber and away we go. 04:46 S1: Done. It was that easy. Now let’s
get a brush or use your fingers or whatever and get rid of all that dust so that it doesn’t
get back inside the hole. Look at that, it’s so easy. Pull the drill out, get rid of that
dust, and we’re now ready to insert the DynaBolt. To insert the DynaBolt is very very simple.
Just put it in the hole like that, and tap it in. Done. Beautiful. 05:39 S1: Now to tighten it up, what we need
is a spanner. Now the proper way to do it is with a torque wrench and on the back of
the packet of the DynaBolt it will tell you how much pressure to actually put on these
nuts. But most of us don’t have a torque wrench, so let’s use a shifter or a spanner of some
description, and let’s tighten this up until it’s nice and firm. Don’t get too crazy, just
till it’s firm like that. And there you have it, secured to the concrete, never ever to
come off. Absolutely fantastic. How easy was that? An absolute piece of cake. Now, if you
thought that video was useful. Please subscribe to my channel, share it amongst your friends,
add it to your favourites, write a comment, or all of the above, that’d be even better.
And after the end credits don’t forget there are two bonus tips that you won’t wanna miss.
So, till next time… Great tip, knackers! [music] 06:58 S1: Bonus tip number 1: If you want
to get your hole really clean, which is a good idea, just use a bike pump, a hand bike
pump. And the nozzle that I use is the one that the kids use to pump their footies up
with. So let’s attach that up. Make sure you’re wearing your dust mask, put it in the hole,
and a few vigorous pumps, and you get yourself a beautifully clean hole. Great tip! 07:35 S1: Okay, tip number 2: Bonus tip number
2 relates to drilling into the concrete itself. Now most concrete slabs, they’re about 4 inches
thick or 100 mil thick, except on the edges of your buildings where you’ve got a big beam,
a big concrete beam. So, the majority of the slab is a 100 mil thick, 4 inches thick. And
beneath that slab is plastic, and that plastic is there, plastic sheeting is there to prevent
moisture from drawing up through your slab. So, if you drill deeper than a 100 mil through
your slab, there’s a big chance of penetrating that plastic sheeting and therefore allowing
moisture to draw up through your slab. Now you don’t want that. 08:26 S1: And oh! Bonus tip number 3: Don’t
put a DynaBolt in too close to the edge of the slab, come in about 50 millimetres. The
reason being that the expandable sleeve on that DynaBolt when it tightens, could blow
the side of concrete slab out. Now, you don’t want that. So, keep it in at 50 mil and you’ll
be as safe as a church. Okay, see you next time.

Comments (71)

  1. this is so flukey i need this info and logging in uncle has it top of the list. I am planning to put up a quick wall to block out the view of my stuff to the street and wall in my carport and was wondering how to attach the bottom rail of the wall. cheers

  2. I actually learned something on this video, Shane.

  3. Thanks for that mate. There you go, who said you can't teach an old dog new tricks:)

  4. Glad l could help mate.

  5. Another great tip Knackers. One thing that does bother me, see when you stick the a pump up a hole, could you be arrested for that when you do it to yer mate?? I guess on the plus side it'll save on the Colonic Irrigation Docs fees??!!!

  6. Thanks for the comment DP. Mate, you've got me thinkin'. Maybe l could open up a colonic irrigation clinic. Thanks for the suggestion. Cheers mate.

  7. Loved how easy that drill went through the slab knackers….Im off to Masters to get me one of them suckers! Yeehar! 🙂

  8. Mate, without trying to endorse any product, the model l'm using is an Ozito rotary hammer drill. You can pick one up for around $70.00. I got mine from Bunnings. Cheers

  9. Hi Mike. I couldn't tell you mate. I don't think it would have been a lovebird. We have heaps of birds around here so it could have been some kind of parrot. Cheers mate.

  10. Only minor problem noted is that you're using the spanner wrench wrong! You should have the sliding part of the wrench on the leading edge of rotation (in this case clockwise). This puts the most stress on the fixed jaw which is built to handle it.

  11. Hi Terry, observation noted. I know what you're saying and l use that method whenever l'm trying to loosen a stubborn nut or tightening up a nut very hard. In this case though because l wasn't exerting a lot of force l wasn't to concerned. Thanks for your comment. Cheers

  12. Thanks for the comment addyshinobi. l'm glad l could help you out. Cheers mate.

  13. No worries Coats Snare. Thanks for the comment. Cheers

  14. I have to anchor stairs into concrete for my Eagle Scout Project and this helped out a ton. Thanks! 😀

  15. G'day SuperMegaBert. Thanks for the comment mate. Glad l could help. Cheers

  16. Great job Shane, teaching us what those in the trades (a lot of them anyway) take for granted is very much appreciated for the rest of us. Please keep them coming.

  17. Cheers Hurshell. Really appreciate the comment mate.

  18. Thanks Shane, this video gave me the confidence to pour my concrete slab for my mailbox and drill the holes through it to fit the mailbox 🙂

  19. No worries Andrew. Glad l could help mate. Good luck with the mailbox. Let me know how you go. Cheers

  20. Hi Shane, Thanks for the great vids, Just thought I would let you know Dyna bolt is ramsets name for a sleeve anchor these are different to a Through Bolt, Proper term wedge anchor, 10mm Dyna/sleeve anchor has an 8mm thread and the sleeve makes up the extra 2mm. The10mm Through Bolt has a 10mm thread and no sleeve at the top and a wedge near the base instead of a sleeve, Keep up the good work.
    Cheers Jimmy

  21. G'day Jimmy, thanks for clearing that up mate. Thanks also for stopping by and checking out my video's. It's much appreciated. Cheers.

  22. Thank yoiu for the simple explanation. And I also learnt about a rotary drill. Will watch out for sales for a rotary drill.

  23. Thanks mnk2829. Appreciate the comment mate. Good luck with getting a deal on the rotary drill. Let me know what you get. Cheers

  24. How about if you want to remove the fixture in the future. Will you end up with a stud sticking out?

  25. Excellent video and gave us all the info we needed.  Thank you. 🙂

  26. can this work through siding on the side of a house? And if the house has brick behind the siding?

  27. Thanks matey I'm not much of a drill user but now with your demo's I can do anything ,Thanks once again.

  28. I like your bonus tips, they definitely will prevent problems when and if I ever decide to start framing my basement.  Thanks mate.

  29. Thanks mate, I was stoked when I found an Aussie to show me a demo before I secure my shed to the ground.

  30. Very informative thank you.

  31. Great tips and I really like the clear way it is explained ….for knucklehead amateurs like me!

  32. Where did you get that rotary drill from? Most of the ones here in the U.S. cost a little over $100 dollars.

  33. Yes indeed, that's a bloody good 1st tip to get that hole clean cause that hole must be dust free. Thanks.

  34. GREAT tips….thank you

  35. Excellent-a plain English video-the best

  36. Great video. Now I can do some project. What is the name of bolt you used?

  37. Just the info I needed. Thank you very much for explaining so well.

  38. So does that mean the anchor is permanent? Any way of undoing it in the future?… I need to attach a 4×4 onto my brick wall and then a gate will be installed on that. The nut will get in the way, any other way to attach it onto the brick? I am an extreme novice so plain English please, lolz

  39. In the U.S. South, that wrench is called a Mexican fix it all wrench

  40. Nicely done, I wish everyone who did a YouTube how-to video would take a page out of you're book. Informational and to the point. Cheers!

  41. Excellent video, answered every question I had prior to starting my job. Thanks mate.

    After watching how quickly your hammer drill went through the concrete, I realised if you have to drill more than just a few holes into concrete its well worth buying one.

  42. Shane, Thanks for the tip! I'm planning to build a pallet shed in the spring and I'm planning to have a concrete floor and I wanted to use dyna or anchor bolts through the side of the pallet walls and into the concrete to give me a strong support any tips or hint here?

  43. Thanks Shane, the perfect tutorial to the job I have to do 🙂

  44. if I don't want the dynabolt nut to come out can I just hammer the threaded end over will that work?

  45. Great demo,I've been struggling all morning not quite understanding how it works as no instructions on bolt. But I'm off with renewed vigour to attempt it. Thank you

  46. Worked a charm. Lol


  48. Great vid did not know it was so easy to bolt into concrete! KNOCKERS!

  49. Hi Shane, thanks for the very helpful video! Can I ask, what would you say is the best way to 'hide' the bolts in this scenario? I'm thinking of just drilling a wider shallow hole with a paddle bit first, but worries whether this will mean I can't get to the bolt to tighten! What do you think?

  50. DRY DRILLING CONCRETE = DEATH Look up silicosis before messing with concrete or any stone products its worse than abestos and its the dust you dont see that will kill you ALWAYS USE WATER NEVER DRY DRILL OR USE AIR


  52. My bolts keep spinning in the hole.

  53. thanks mate that helped with my garden shed :o)

  54. 4:58 it's the little things. Good idea.

  55. Do I drill into the bricks or the mortar? Want to secure a retractable hose mount and saw an American guy on another video drilling into the mortar. To my mind this looked wrong. I've never done this before so don't know.

  56. man,
    made it look easy

  57. Go to Woodprix page if you want to learn how to build it yourself.

  58. Great vid Shane. Always good to see secret tradie business. 😋 I'm about to put a floating deck over exposed agg. I'm thinking it might be best to use concrete screws (countersunk) instead of dynabolts just in case a joist needs replacing in future. What u reckon? Cheers Jamie

  59. Enlightening. You really make look quite easy. The caveat about the moisture prevention is quite helpful. A sturdy rotary hammer drill is worth the investment. Thank you.

  60. Hey Knackers Im building a 5x3m shed. How many dynabolts per wall? Im thinking one every meter. Then a couple more on the corners?

  61. An oldie but a goodie. Like watching a Bunnings Video … except in this case the person does actually know what they're talking about 😉

  62. Mate – The tip about using a bike pump to clear debris from the hole was worth the price of admission. It was GOLD and means I no longer have to blow my lungs out while getting a face full of grit at the same time!

  63. how can i anchor a wooden gazebo to a PAVER patio?

  64. Cracking video. Only found the channel today looking for postcrete tips. Might subscribe if the next one is as good.

  65. Great video mate

  66. Is it of any worry if you drill through the reinforcing?

  67. i been doing that for years and one prob is some concrete anchors explode the concrete even after a few years. showed many tradies the prob and yes i can happen. whats your thoughts to why ?. good video by the way mate.

  68. Finally…. an Aussie video…
    Dead set… we have our own language fa fucks sake !!!
    This was so helpful.
    I got a couple of aluminium sheds from Bunnings .
    I want to build wall framing for both sheds (aka house wall frames but smaller)
    In one corner I want two thick uprights spaced apart to hang my mitre saw with the folding stand in front.
    Great space saver.
    would sleepers work or too heavy/overkill ???
    Cheers mate

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