Not sure where to post this, but I always get my questions answered on these forums.:) I want to post a sign on a cinder block wall. "No skate boarding" in case you're interested in what type of sign. What type of screw do I need to ask for at the hardware store? Thanks for your help.

They make special screws to go into Concrete or cinder blocks, Among others Black and Decker makes them. You can use a plastic or metal sign, though Metal tends to last longer.To attack you start by drilling a hole with the special concrete type bit that matches the screw. than you will attach one corner of the sign. I would go with either 4 corner mounting or 4 corner and center top/bottom (Assumign signe is in landscape orientation) or middle each side (Portrait).

Might want to make the sign as vandal proof as you can make it too. Skaters have been known to travel with flatbars and BHF's to lift off anti skateboarder obstacles.They'd laugh at 4 concrete screws.

Is this for where you park your RV at home are at camp grounds...If at camp grounds this would probably have to approved by the camp ground owners...Roy Ken

RoyB: No, it's for our church. Thanks for the responses.

Tapcon Screws will do the job.You can buy small packs of screws with the proper masonry bit included. They can be found at any hardware store.

Attaching sign to cinder block | Good Sam Community

17 Replies

time2roll
Nomad
Jul 30, 2016
+1 for Tapcon. Have used several times with no issues.
salem
Explorer
Jul 30, 2016
You guys are great, thanks loads.
Kayteg1
Explorer II
Jul 30, 2016
Home Depot also sells dual-sided glue tape just for such application.
That will not leave marks when removed.
mayo30
Explorer
Jul 30, 2016
Use a simple tube of concrete adhesive in a tube,
DownTheAvenue
Explorer
Jul 30, 2016
salem wrote:
What type of screw do I need to ask for at the hardware store?

Why not just tell the guy at the hardware store what you are doing and let him recommend a product he has in stock. Go in and asking for a specific product eliminates your having access to some new and easy method that would otherwise be recommended.
DrewE
Explorer II
Jul 30, 2016
Definitely buy, beg, or borrow a hammer drill if you don't have one. The time and annoyance saved in making a hole in a cinder block will be very much worth it.

For these sorts of things, I generally use plastic wall anchors. That's just my personal preference.
Bobbo
Explorer II
Jul 30, 2016
Agree on the Tapcon Screws, but put them in the block itself, not the mortar joint. It will be stronger.

Also agree with putting construction adhesive on the back of the sign.
BobsYourUncle
Nomad
Jul 30, 2016
In my work building solariums and patio covers I frequently have to attach things to cinder blocks.

I have a simple method that works very effectively.

I drill a pilot hole with a 3/16" concrete bit using my Hilti hammer drill. Then I use a #12 PHS sheet metal screw. PHS= pan head socket. Sheet metal screw because the threads go right to the top.

A #12 screw will turn snugly into a 3/16" hole drilled in both concrete and cinder block.
If the hole is loose in any way, cut a corner off a piece of dimensional lumber such as 2X4 and whittle it a bit, but keep it oversize, and pound it into the hole until flush. Then any screw will run in.

This method works well - I do it all the time.

If prying the sign off is an issue, liberally slather the back of it with silicone prior to attachment. The silicone sets up and is difficult to remove.
K_Charles
Explorer
Jul 30, 2016
Not in the cylinder block, in the mortar joint.
Halmfamily
Explorer
Jul 30, 2016
gbopp wrote:
Tapcon Screws will do the job.
You can buy small packs of screws with the proper masonry bit included.
They can be found at any hardware store.

X2. Available at Home Depot or Lowes.