Can anyone help me in identifying this odd thing. It seems to be some sort of attaching or tensioning "screw" I have searched the internet as much as i can and now i'm out of ideas as to what it is.
The plastic handle or tightening tool is 14cm long and slides over the black portion to loosen or tighten.
The plastic screw is 5cm long and the metal T-bar is 2cm and firmly embedded into the end of the screw.
The thread width is 1.5cm with a 3mm pitch.
The black "nut" is 3.7cm diameter at the base and 2.2cm tall.
Thanks in advance.