These M10 wedge anchors are a simple way to attach holds to brick or masonry walls.
You will also need a 12mm masonry drill bit and a setting tool.
Drill a 12mm hole with a depth of 42mm. Then insert the anchor, and using the setting tool, hammer the internal wedge into the anchor, causing it to expand and lock into place. Then you’re ready to bolt on your climbing hold. They have a thread depth of about 20mm, so your bolts need to have no more than 20mm of thread from the back of the hold.