How to install double expansion anchors

Fastening to Cinder Block Cinder block …. Jun 16th Mike Pistorino. Male or Female Anchor? Female anchors would require the spotting of the anchor and then place th …. Feb 21st Mike Pistorino. Safely Install the Anchor 1. Preparing A hole will need to be created in the base material.

This is where the anchor will be inserted and installed. Drilling into masonry materials requires the use of a hammer drill. A hammer drill breaks up the base material with an up and down hammering motion while the rotation removes the dust. A straight rotation drill should not be used because the hole created will not meet the standards required for the anchor. Along with the hammer drill, a carbide tipped bit meeting ANSI standards must be used.

ANSI standards ensure that the carbide bit meets the hole tolerance required for the anchor. Anchors sizes are designated by the inside diameter. The hole diameter requirement is equal to the outside diameter of the anchor. Drilling The depth of the hole in the base material must be at a minimum equal to the length of the anchor that is being installed. In many scenarios, a deeper embedment will provide better holding values but will also require a longer bolt.

The depth gauge provided with the hammer drill can be used to ensure proper hole depths. Make sure the hole is drilled to a depth equal to the length of the anchor being installed. Using a vacuum, compressed air and wire brush clean out the hole of all dust and debris. Insert the double expansion anchor into the hole threaded nut first and tap lightly until the top of the anchor is even with the surface of the base material. Move the object being fastened, aligning the hole in the fixture with the hole in the base material.

Insert the bolt through the fixture and into the double expansion anchor until finger tight. With a wrench, turn the bolt 1 to 3 complete turns. Facebook Email Print Twitter Pinterest.

Recent Posts. Get the job done right the first time by using the best masonry anchors for the application. A mason …. Nov 24th Mike C Pistorino. Fastening to Cinder Block Cinder block …. Jun 16th Mike Pistorino. Male or Female Anchor? Female anchors would require the spotting of the anchor and then place th …. Feb 21st Mike Pistorino.