On Fri, 21 Aug 2020 02:33:35 -0700 (PDT), lissa xue
wrote:

What I understand is that a bolt needs to be fixed to the wooden board. Is it a bolt like this?
http://www.fixdex.com/index.php?m=co...catid=20&id=75
It is easy to install and has strong bearing capacity



.... from the link you posted ; " Functionality " :

" It is used for hanging and quick-removable structures, scaffolding.
It is designed to attach materials and equipment to concrete, natural
stone, full-bodied brick.
Installed in a pre-drilled hole, twisted manually, turning the head
clockwise. "

What's the question ?

John T.