On Sat, 9 Mar 2019 13:57:16 +0000, Michael Chare
wrote:

Do concrete screws grip properly when inserted into breeze block, or
will I have to use a rawlplug?

Pretty good actually.

If you follow the instructions you will see no mention of a rawlplug.
they have their drawbacks but ill never go back to plugs and screws if
i can use concrete screws they are very firm and hold huge loads but
you must follow the instructions.

Malc