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Connecting to Concrete

Connecting to Concrete

Fastening something to concrete , brick or stone may be frightening if you sanctuary’’ t done it in the past. I’’ ve discovered that the hardest part is drilling the hole. After that, it’’ s much like securing to any other product’. Put on ’ t be daunted! With these suggestions, you ’ ll have the ability to connect almost anything to concrete.

Caution: Silica dust can harm your lungs. Constantly use a respirator when you’’ re drilling or cutting concrete or masonry.

. What ’ s the Difference Between a Hammer Drill and a Rotary Hammer?

 Hammer Drills

.Hammer Drills.

Hammer drills typically come as a mix chauffeur with a drive, hammer and drill setting. In the hammer setting, a set of grooved discs turn, making the chuck slam forward and back as the chuck turns. This hammering force makes the drill bit chip into the concrete as it spins.

.More pressure, more development.

When you’’ re utilizing a hammer drill, more force equates to much faster development. View out, these bits can break —– reduce up if it begins to flex!

.Dial in the RPM.

With a hammer drill, I discover that slower RPM (transformations per minute) implies slower drilling, while greater RPM doesn’’ t mean quicker drilling. The sweet area for me is medium-high RPM. My hammer drill has 2 speed settings, so I utilize the high setting and push the accelerate till I discover that sweet area where the bit continues at a consistent rate.

 Rotary Hammers

.Rotary Hammers.

Rotary hammers are the hammer drill’’ s huge bro. The motor turns the bit and moves a piston backward and forward, which offers the tool more pounding power. Numerous rotary hammers are multifunctional, including drill and hammer to the standard rotary hammer function, making them even more helpful.

If you have great deals of drilling to do, a rotary hammer will cut your labor significantly. You can purchase a rotary hammer beginning at about $100.

.Let the tool do the work.

Unlike with a hammer drill, you wear’’ t requirement to put your weight behind a rotary hammer. Excessive force decreases the efficiency of the piston movement. Apply simply adequate pressure to make stable development.

.My Go-To Concrete Fasteners.

You’’ ll discover a lots fastener options at the hardware shop, all matched to various jobs. The most essential thing is to drill the correct hole size for your fasteners.

 Concrete Screw

.Concrete Screw.

I select concrete screws for the majority of fastening tasks due to the fact that they’’ re simple to utilize, detachable and strong. They vary in size from 3/16-in. to 3/4-in., and in length from 1-1/4- in. to 6-in.

Pro Tip: An effect motorist is my go-to tool for driving concrete screws. It’’ s the only method to go!

 Plastic Anchor

.Plastic Anchor.

Plastic anchors work the exact same in concrete as they carry out in drywall —– press the anchor into the hole and it broadens for a tight fit as you drive a screw into it. Plastic anchors are the most affordable alternative. They’’ re finest for light-duty jobs like hanging little photos and rack brackets.

 Sleeve Anchor

.Sleeve Anchor.

Used for durable attachment or hanging, sleeve anchors are irreversible, actually strong and more economical than big concrete screws. They can be utilized in any concrete or masonry and have either a screw head or a nut to tighten up. The sleeve broadens as you tighten up the nut for a company grip.

 Wedge Anchor

.Wedge Anchor.

Wedge anchors offer the greatest connection for requiring tasks like attaching structural hardware to concrete. Hammer the anchor into the hole, then turn the nut to lock the anchor in location. Don’’ t usage wedge anchors in block, #aaaaa or brick href=””> mortar joints . The force might trigger breaking.

.Concrete Fastening Tips From the Jobsite.

 Drill deep Fh21apr 609 51 011 1200

.Go deep.

Drill your hole a minimum of 1/4-in. much deeper than the length of your fastener (1/2-in. much deeper for fasteners 3/8-in. or bigger in size). This guarantees that your fastener won’’ t bottom out due to the fact that of dust or other particles in the hole. If your drill doesn’’ t have a depth gauge, cover a tape flag around the drill bit so you understand how deep to go.

 Fix a strip-out

.Repair a strip-out.

So you’’ ve drilled your hole and for some factor your fastener doesn’’ t grab. Prior to surrendering, attempt these alternatives:

.Include a Wire. Press a copper wire into the hole, then drive your concrete screw. Drill a Bigger Hole. Upsize the hole and drive in a larger fastener. You might likewise require to drill out the hole in the parts you’’ re attachment.

 Shoot nails into concrete

.Shoot nails into concrete.

If you have a great deal of concrete attachment to do, think about a powder-actuated tool. It utilizes a gunpowder load to shoot an unique nail into concrete. It’’ s the quickest masonry fastener offered and costs just $25. Prior to you utilize one, go to and look for ““ powder activated tool” ” to get the completestory.


 Control the dust

.Control the dust.

Concrete includes crystalline silica , which can result in major health problems. Constantly use a respirator when drilling into concrete, however put on’’ t stop there. A vacuum nozzle near to the action avoids the majority of the dust from ever entering into the air.

 Fasten much faster with a bit package

.Attach quicker with a bit package.

To accelerate drilling and driving, utilize an unique set like this Bulldog Anchor Drive Installation Kit by Bosch. Numerous brand names make a comparable setup tool; this one expenses about $40. It slips over an SDS (slotted drive shaft) bit, letting you drill and drive fasteners.

 tough area

.Relocation on if you struck a difficult area.

When you’’ re drilling concrete, in some cases you’’ ll struck something that the bit can’’ t quickly permeate, normally a rock or rebar. In some cases you can overcome it, however it’’ s best to attempt a various area. Even if you survive it, your fastener will strike it too and likely shear off as you’’ re driving it.

 Drill wood with a masonry bit

.Drill wood with a masonry bit?

When fastening wood to masonry, some individuals drill through wood with a basic bit, then change to a masonry bit. Changing isn’’ t worth the inconvenience. A masonry bit isn’’ t the very best for wood, however it will get the job done without damaging the bit.


 Clean the hole

.Clear out the hole.

When you drill a hole, dust settles to the bottom and hold on to the sides of the hole. The dust might keep your fastener from embedding all the method or trigger a sleeve or wedge slip. Utilize a #aaaaa and a vacuum href=””> copper fitting brush to get rid of all the dust.

 Stay away from the edge

.Keep away from the edge.

An excellent guideline is to keep an anchor far from an edge a range of a minimum of 12 times the size of the anchor. A 1/4-in. anchor needs a minimum range of 3 inches from an edge. Don’’ t utilize a wedge — anchor in this scenario– its outside force might trigger a blowout .

 Drill into mortar

.Do I attach to mortar or the block/brick?

Drill into mortar if you’’ re hanging an image frame or light-weight vacation designs. Mortar is a lot much easier to drill into. It ’ s more susceptible to falling apart, however it ’ s much easier to spot . When you ’ re hanging much heavier things like a TELEVISION, it ’ s much better to secure straight to the brick or block. The product is harder however still fragile, so prevent wedge anchors.


 four-cutter bit

. For a smoother trip, utilize a four-cutter bit.

Two-cutter bitswork great, however four-cutter bits are much better. Four-cutter bits are offered at house centers for about 20 percent more than two-cutter bits. Four-cutter bits last longer, cut smoother and simpler and are less most likely to twist the drill out of your hand if you struck an acid rock or rebar.


 masonry nails

. Don ’ t trouble with masonry nails.

You ’ ll likely still discover a dirty box of masonry nails hid at the hardware shop. Leave it there. Masonry nails aren ’ t approximately the requirements of more recent anchors and fasteners, and they need more effort than concrete screws.

 clear the flutes

.Clear the flutes.

The bit’’ s flutes bring dust up and out of the hole as you drill, however they can get blocked. The bit spins without making any development when they do. To launch the dust accumulation, simply pull the bit out of the hole while it’’ s spinning. I generally do this every inch approximately of depth.


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