Installing Lag Bolts Into Concrete

Screws for most light to medium duty tasks.

Installing lag bolts into concrete.

The pilot hole serves as a guide for the. Be sure to have plenty of extra bits on hand and use a can of compressed air or a blower to clean dust away from the drilled hole. Diameter screws are plenty strong for most home tasks like installing furring strips screwing down walls to concrete floors and attaching hardware to block or brick. A lag screw is the poor man s concrete anchor.

Use tapcon concrete screw anchors for installing sill plates electrical equipment furring strips and many other applications that require fastening into brick block. Next make sure you have a lag screw long enough for the installation. Regular drill bits will dull too quickly. To bolt into concrete you ll need a hammer drill a titanium or carbide tipped drill bit and wedge anchors.

In this video i will show you how to drill into brick concrete and cement with a drill and also how to attach fix mount or anchor into a brick concrete or. They are thicker than ordinary screws have a hexagonal head and they are used in a myriad of materials to create structural integrity where it is needed most. Use a wrench to turn the lag screw clockwise until tight. Tapcon concrete screw anchors draw from its unique ability to tap its own threads into concrete making it an excellent alternative to expansion anchors plugs and lag shields.

A pilot hole is a hole that is drilled into the material you wish to use a lag screw on. Clean any concrete dust out of each hole you drill with a vacuum cleaner or wire brush. You will need to drill a pilot hole when using any type of concrete anchor. The fixture is then placed over the lag shield inserting a lag screw through the fixture and into the lag screw.

For example if you wanted to install a 2 x 4 to the lag shield you would need to make sure the lag screw had 1 1 2 of clearance and then about another 1 to 1 1 2 to install into the shield. The first thing to do is put your drill into hammer mode and drill a hole in the concrete. This means you would need roughly a 3 lag screw to complete this. After installation the fixture is removable because the lag shield anchor remains in the concrete and only the lag screw is unscrewed and removed.

Drill a hole in the base material with a hammer drill and a correctly sized carbide drill bit for the diameter lag shield anchor you are using.