Attaching sign to cinder block

[salem]

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.

[time2roll]

+1 for Tapcon. Have used several times with no issues.

[salem]

You guys are great, thanks loads.

[Kayteg1]

Home Depot also sells dual-sided glue tape just for such application.
That will not leave marks when removed.

[mayo30]

Use a simple tube of concrete adhesive in a tube,

[DownTheAvenue]

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]

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]

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]

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]

Not in the cylinder block, in the mortar joint.

[Halmfamily]

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.

[Dave_H_M]

I was thinking Tapcon also. i use them all the time in regular concrete.

Seems to me that the cinder block would have enough strength to hold for a sign.

No muss no fuss, just drill a hole with the proper size masonry bit and and screw them in.

The local farm supply store carries all sizes and gives the specs on which size bit to use.

[midnightsadie]

buy stainless screws or you,ll have rust marks. stop at lowes FIND SOME ONE who looks smart and tell them your job.for a church some body should know how.

[gbopp]

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.

[salem]

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