How to Install Drop In Concrete Masonry Anchors | Fasteners 101

Want to learn how drop in anchors are used? In this brief video, we cover how to use and install drop in anchors in concrete.

Concrete drop in anchors are internally threaded concrete anchors, often installed overhead that run flush with the surface of concrete or stone. These anchors are often used to support handrails, lighting fixtures, piping, and more. They are for use in flush-mount applications in solid base materials.

Find Drop In Anchors in a variety of materials and sizes here:

[illepilif]

Important information such as how deep the hole should be and what length bolt you can use were left out. If I have a 1 inch drop in anchor, should I get a 1 inch bolt and drill a 1 inch hole??

[ActiveAtom]

Hi we use the heavy ones for installing ballards, protectors into the concrete near the gas and our 3 phase electric drops and meters now we are doing some security screens that are dependent on the concrete to hold the man bases in place. They work great not that first time or so but you figure out the real drilling and such as you go, they really work.
Lance & Patrick.

[alanhill]

It would have been far easier if you had taken those bloody gloves off.

[shedtreasures]

can I use drop in anchor for (old English) red brick wall? It is for a barn door, need to hold heavy load.
Can I use this drop in anchor or do I need something else for brick?

[astrazenica]

Why not use epoxy as well for extra strength

[mikefaumuina]

I use 3/4” drop in for tie back fall protection. Do you have any suggestions on testing these anchors like a pull test? In 2017 some new standards were introduced for window cleaning applications and one of those is every ten year testing. Thanks for posting.

[johnnybravo]

Can i use these to hold down a base for a kickboxing bag??

[mahmoudabouelenin]

what are the maximum bolt diameters can be used in this system?

[Jeremy-suxy]

Can it be used for the bottom plate for the studs in a room?

[bossmanz]

Can these be used in hollow block as well for extreme light duty applications? Maybe at least the solid part of the hollow block. Just trying to figure out the best way for putting 1/4" eye bolts into block and concrete (if im lucky) for running fire linkage for overhead roll up fire doors. Jus has to hold cable linkage snug. Extreme light duty application but have to do it alot being in the overhead door business. Unfortunately about 7 times out of 10 fire linkage wasnt ran properly to meet fire code if ceiling wasnt conveniently low lol

[nuggetsaurusrex]

I'm having trouble screwing the bolt down all the way after a certain point. I bought a bult that is just slightly shorter than the length of the drop in anchor. Is the bolt only meant to go in about halfway or is it supposed to go all the way in? I notice at the expanding part there is no more threading so I'm not sure if the bolt is meant to go in further

[conqwiztadore]

i dont know why a smooth surface is even an option with these things, all of them should come knurled

[thomast]

Can the drop in anchor be set in wet concrete. I will be putting in an 8 in footing and need to have an eyebolt set in the concrete to straiten a tree

[texarkanaandi]

Where do we find-out what thread-size bolts to use with the drop-in anchor?

[heroknaderi]

Perfect for machines screws in concrete.

[nathanturner]

Will this work in thin concrete? 1.5" slab

[RockAnAhardSpot]

wish I would have watched this before I mangled my first ever 1/2 anchor bolt install. LOL it;s in there but it aint going to accept a bolt . unless i drill and tap it.

the instructions on the package said 2" deep min. well that does not fly for the 2" sleeve, there has to be enough room for the pin to whack that thing inside to expand the botton so it can show enough threads to accept the bolt. i went a head and hammer the thing flush and I am going to cover it and start over. LOL fkn BS.

[kristofferbeder]

There are TWO things to know when using these anchors.
1) HOLE DEPTH IS CRITICAL. Drill only about 1/4” beyond the length of the anchor. This means they won’t work in cement block or other hollow walls.
2) CLEAN THE HOLE. You will never get very good grip if the hole is coated in dust. Most important for horizontal holes.
This 3 minutes video is a waste of time. They neglect to mention both of these things, and tell you nothing that isn’t obvious just from looking at a photo of the anchor.