Concrete Inserts

[Alwayslearningelec]

Was using Hilti nails with this but now the engineer said we can't use them and now want's the expansion shields. Which I guess is a machine screw anchor. I assume these are much slower to get in the slab then using Hilt gun and nail which sucks.

 

[hbiss]

Lead expansion shields haven't been used for many years. I would send the engineer an RFI with current product information and ask him to choose a suitable product.

And yes, they require drilling into the concrete to install them.

Hilti

DeWalt (formally Powers)

-Hal

 

[hbiss]

I have used these for many years for light duty loads needing an 8-32 through 5/16" fastener. You might be able to use these in some places also.

Calk-In

-Hal

 

[infinity]

You don't want lead anchors as Hal stated. Look up an acorn anchor that meets the spec.

 

[LarryFine]

You're not allowed to follow the manufacturer's instructions?

 

[Alwayslearningelec]

Lead expansion shields haven't been used for many years. I would send the engineer an RFI with current product information and ask him to choose a suitable product.

And yes, they require drilling into the concrete to install them.

Hilti

DeWalt (formally Powers)

-Hal

Thank you very much. I'm not clear. Lead expansion as opposed to what? I see what options you posted but the material difference is what? Lead to steel? You can hang T-Rod directly from machine screw anchors correct?

I really need the cheapest option. Labor rate is high here so a labor saving product would be great too. THanks.

 

[Alwayslearningelec]

You're not allowed to follow the manufacturer's instructions?

What do you mean?

 

[Alwayslearningelec]

Thank you very much. I'm not clear. Lead expansion as opposed to what? I see what options you posted but the material difference is what? Lead to steel? You can hang T-Rod directly from machine screw anchors correct?

I really need the cheapest option. Labor rate is high here so a labor saving product would be great too. THanks.

Thank you very much. I'm not clear. Lead expansion as opposed to what? I see what options you posted but the material difference is what? Lead to steel? You can hang T-Rod directly from machine screw anchors correct?

I really need the cheapest option. Labor rate is high here so a labor saving product would be great too. THanks.

What I was saying is that machine screw anchor leaves a female opening for something to thread into correct? There's other anchors that go into the concrete that leaves a male threaded sided sticking out for a coupling or nut etc. to thread onto?

 

[hbiss]

Right. Look at the pictures.

This is why the engineer should have done something better than pasting boiler plate specs from 40 years ago.

-Hal

 

[Alwayslearningelec]

Right. Look at the pictures.

This is why the engineer should have done something better than pasting boiler plate specs from 40 years ago.

-Hal

So can you thread a threaded rod right into a drop in anchor? No issues with that?

 

[LarryFine]

So can you thread a threaded rod right into a drop in anchor? No issues with that?

I have, jam-nutted to drive it in. Not for hundreds of pounds.

 

[Alwayslearningelec]

I have, jam-nutted to drive it in.

"Jam Nutted"??

 

[LarryFine]

What do you mean?

The images showing driven pins.

 

[LarryFine]

"Jam Nutted"??

Wrenching two nuts together to lock them onto the threads.

What Are Jam Nuts? and How To Use Them - Albany County Fasteners

Jam nuts are one of the more confusing nut options available. Join us as we explore how to install jam nuts and figure out just what they are

www.albanycountyfasteners.com

 

[hbiss]

I really need the cheapest option. Labor rate is high here so a labor saving product would be great too.

So, this where you need to be consulting with manufacturers reps. They know their product lines and capabilities. You need to supply them with exactly what you will be hanging/supporting, the loads and to what. If you have a sizable project, I don't see why they wouldn't supply the information you need.

-Hal

 

[Alwayslearningelec]

It's to support 12/2 MC cable and cat 6 cables.

They want the support to attach from slab unfortunately and not off any pencil rod etc.

 

[hbiss]

It's to support 12/2 MC cable and cat 6 cables.

They want the support to attach from slab unfortunately and not off any pencil rod etc.

That's better for you. Now go to Caddy and select a hanger, then an anchor from HERE. I would recommend a caulk-in, probably for a 1/4-20 screw.

-Hal

 

[Alwayslearningelec]

That's better for you. Now go to Caddy and select a hanger, then an anchor from HERE. I would recommend a caulk-in, probably for a 1/4-20 screw.

-Hal

Why. I thoought the Hilti nails where quicker.