Drilling Lag Bolts Into Concrete

Start the drill and push forward with firm but not heavy pressure.

Drilling lag bolts into concrete.

Next take a hammer and tap the lag shield down into the hole you ve drilled until its flush with the surface. Tools needed to drill into concrete it is important to use a hammer drill or rotary hammer drill in concrete applications. Replace the drill in the pilot hole ensuring that the drill is perpendicular surface. Slide a washer and nut over the threaded end of the anchor.

A good rule is to drill your pilot hole a third of the length of the screw. Line up your fixture or whatever you want to attach to the. Screw embedment will work fine. You also do not have to go very deep.

Drill a hole into the material that is smaller than the diameter of the lag screw. Attaching a fixture with wedge anchors 1. If you encounter an. To the thickness of the material you re attaching to get the minimum length of screw needed.

Lag bolts for concrete are used with an anchor or insert called a lag. They are made specifically for the installation of lag screws into masonry materials. The nut and washer will help protect the anchor and. Before drilling you will also want to measure the length of the lag shield and drill down the length plus a little extra space.

The center part of the lag is made out of a softer metal like zinc mixed with soft iron or lead. How concrete lag bolts work. The smaller the pilot hole the more effective the lag screw will be. Run the drill at a slow to medium speed and pull the drill out periodically to help remove concrete dust from the hole.

To install a lag shield into concrete first drill a hole that is the same diameter as the outside diameter of the lag shield. Select a screw length to penetrate the concrete at least 1 in. A standard drill is insufficient when drilling into concrete because the drilling rotating action is not enough to break the concrete. The process involves drilling appropriate sized holes into concrete to the proper depth using a hammer drill with a masonry bit cleaning out the drilled holes to remove the concrete debris.

Place the fixture over the concrete and line up the holes.