Posted 9 years ago
llehmann
(1 item)
Found this in tools from my boyfriend's grandfather. It swivels in the middle and it turns from either end. That's all I know.
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It's a "turnbuckle". The threaded ends have opposite threading; when you turn the center it draws the ends together. It is used to create tension such as tightening a cable.
On aircraft, at least the centre barrel would have a hole for safety wiring.
Thank you! And there is a central hole. His father built model aircraft as well as buildings.