These are the screw and driver sizes provided by Tapcon. Metal Expansion Anchors: Metal expansion anchors or shields are inserted into a hole in the concrete and then a screw is driven into the shield. The insert expands and presses against the concrete which creates holding power. Metal expansion shields work well for heavier screw applications.
Plastic Expansion Anchors: Plastic expansion anchors work just like the metal expansion anchors. The work well for lighter duty applications like hanging window shutters on the brick exterior of the shed. Find the depth of the concrete screw by:. The result if this is your desired depth. Either set the depth gauge on the drill to this depth or use masking tape wrapped around the drill bit to mark the depth.
Use a hammer drill to drill into the concrete or masonry surface. A hammer drill is a drill that rotates like a normal drill and it hammers the concrete at the same time. The hammering breaks up the concrete or masonry and the rotation removes the concrete dust. For more information on drilling in concrete or masonry read the article How To Drill Concrete. It is important to maintain a fair amount of pressure on the head of the screw so the bit does not slip, this is especially true when using phillips head screws.
You can also find some that run horizontally. If you're joining them face to face, that's 3 inches thick. A 3 inch long construction screw is ideal, but if you sink the screw head below the surface too far , the tip will blow out the other side. The most important factor in screw selection is length. The general rule of thumb is that the screw should enter at least half the thickness of the bottom material, e. Now, I knew two 2x4s sistered would be stronger than a 4x4 since you have opposing grains, what I didn't realize is that 4x4s are actually cut from the core of the tree which is the weakest part of the tree thanks Dad for the lesson in lumber.
So a standard 4x4 is actually much weaker than two 2x4s side by side. Fastener length Whether you choose to use screws or nails, the length is crucial to the success of your fence.
Outdoors use 16d double-dipped galvanized nails or stainless steel when called for for installing hangers. The manufacturers agree: Never use galvanized deck screws or drywall screws to install joist hangers. Those screws don't have the shank size and toughness to support joist loads.
Product Details. The SDWS Framing screw is designed and load-rated for replacing 16d, 10d and 8d nails in framing applications. Nails have tremendous strength in shear, but are subject to pull-out.
This is why nails are never used where subject to withdrawal forces, like a deck ledger. Screw are very resistant to pull-out, but are weak in shear. So no , we would not frame a house with deck or drywall screws.
When deciding between nails and screws , keep in mind that nails are less brittle, so they provide greater shear strength. Screws , on the other hand, may not be as forgiving, but their threaded shafts hold better in wood and draw boards together much more tightly and they have greater tensile strength.
Nail size is more important than you might think when framing interior walls. Nails that are too long or fat are difficult to drive and can split wood, while short or thin nails just don't do the job. These are called d, or "penny," nails. Standard screws are brittle. While undoubtedly considerably stronger than normal screws , this leads me to still question their shear resistance. Pre-drill a pilot hole using the drill bit and drive it until the stop collar touches the top of the drill guide.
Keep the Deck Jig in place. Next, grab a deck screw and add it to the end of the driver bit. Place it in the drill guide and drive the screw into the same hole that you just pre-drilled. Continue driving until the stop collar touches the top of the drill guide. Now you can remove the Deck Jig. Work your way down an entire deck board on one side, adding a pilot hole and driving a screw with the Deck Jig at every joist location.
Next, move to the other side of the deck board and continue. You want to have a screw going into both sides of the board at every joist. Use the red spacer rings in between the deck boards to keep the proper spacing.
Whenever possible, try to use the center drill guide to drive the screws into the deck board. Use the lines on the jig to make sure the joist is lined up and your drilling the screw into the center of the joist. There are several scenarios of drill guide hole placements outlined in the Kreg Deck Jig instructions if you get stuck.
There you have it, that is how you lay deck boards using the Kreg Deck Jig. The materials and tools listed above are for the entire deck build.
For the full tutorial of build the wood deck including free woodworking plans , check out this tutorial. Your email address will not be published.
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