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What is the correct way to fix these? (the screw type, not the hammer type)
Lets say you're attaching a 4x4 timber post to a brick wall.
Do you :
- Drill hole into fence post so the screw freely moves, but with little slop
- Place post against wall and use the holes above to mark where to drill into wall.
- Drill hole into wall the length of the plug, and insert plug all the way home into wall
- Place post against wall and drive screws home.
- Drill hole into fence post the size of the plug
- Place post against wall and use same size drill bit to drill a hole into wall
- insert plug and screw and secure.
In the first method the plug is only in the brick work. In the second method, the plug ends up being the length of the timber hole, and then the remaining in the brick work.
Which is the correct way? does it really matter?
The ones I used were 80mm, but I replaced the screws with 120mm versions. I used the first way, but I counter bored the fence post so the screw was mostly in the brick work.
I've also just seen Lightning Masonry Bolt M8 x 130mm | Toolstation which seem like a much better option.