RogerS
Established Member
This was the original problem
A large crack developing due to the foundations shifting. And getting worse.
My proposed solution was to have fabricated out of 16mm mild steel a tie bar which came in three parts and joined like this
only either my measurements were wrong or they made it to the wrong length because this has happened
The individual tie bars are too long for me to take back to modify them. I don't have any welding kit. Nor do I have a die and stock large enough to thread the bar myself and so I thought drill a hole through the bar.
So I started small....3mm and put in a wire nail..which promptly sheared off once I tightened the bar up and so my questions are as follows:
1) what size hole can i safely drill in the bar (16mm dia) before I weaken it
2) what should I use instead of the nail? A bigger one? HSS stock .but not sure where to get a piece in small quantities and how would I stop it falling out of the hole as I seem to remember that HSS is brittle and so can't be bent like a nail
3) Is this a sensible route to take or is it weaker than a nut?
4) Given that steel expands/contracts, when should I tighten up the bar?
A large crack developing due to the foundations shifting. And getting worse.
My proposed solution was to have fabricated out of 16mm mild steel a tie bar which came in three parts and joined like this
only either my measurements were wrong or they made it to the wrong length because this has happened
The individual tie bars are too long for me to take back to modify them. I don't have any welding kit. Nor do I have a die and stock large enough to thread the bar myself and so I thought drill a hole through the bar.
So I started small....3mm and put in a wire nail..which promptly sheared off once I tightened the bar up and so my questions are as follows:
1) what size hole can i safely drill in the bar (16mm dia) before I weaken it
2) what should I use instead of the nail? A bigger one? HSS stock .but not sure where to get a piece in small quantities and how would I stop it falling out of the hole as I seem to remember that HSS is brittle and so can't be bent like a nail
3) Is this a sensible route to take or is it weaker than a nut?
4) Given that steel expands/contracts, when should I tighten up the bar?