Drilling Lag Bolts Into Concrete

The nut and washer will help protect the anchor and.

Drilling lag bolts into concrete.

A standard drill is insufficient when drilling into concrete because the drilling rotating action is not enough to break the concrete. Replace the drill in the pilot hole ensuring that the drill is perpendicular surface. They are made specifically for the installation of lag screws into masonry materials. Line up your fixture or whatever you want to attach to the.

The smaller the pilot hole the more effective the lag screw will be. Before drilling you will also want to measure the length of the lag shield and drill down the length plus a little extra space. You also do not have to go very deep. Screw embedment will work fine.

Slide a washer and nut over the threaded end of the anchor. Tools needed to drill into concrete it is important to use a hammer drill or rotary hammer drill in concrete applications. To install a lag shield into concrete first drill a hole that is the same diameter as the outside diameter of the lag shield. How concrete lag bolts work.

The lag is an expanding insert with a jacket of hard metal that grips the sides of the drill hole. A good rule is to drill your pilot hole a third of the length of the screw. Place the fixture over the concrete and line up the holes. 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.

The center part of the lag is made out of a softer metal like zinc mixed with soft iron or lead. Attaching a fixture with wedge anchors 1. 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. To the thickness of the material you re attaching to get the minimum length of screw needed.

In hard dense materials like concrete or stone this minimum 1 in. Run the drill at a slow to medium speed and pull the drill out periodically to help remove concrete dust from the hole. Next take a hammer and tap the lag shield down into the hole you ve drilled until its flush with the surface. Select a screw length to penetrate the concrete at least 1 in.

Lag bolts for concrete are used with an anchor or insert called a lag.