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Insight - How Expandable Screw Works

Written By: 

Bijal Parikh

All the parts of the assembly are shown below.

Expandable Cone

 

There are five parts in the image.

{C}{C}{C}{C}        1. Screw

{C}{C}{C}{C}        2. A hollow metallic cup

{C}{C}{C}{C}        3. Three Metal plates

{C}{C}{C}{C}        4.  Twisted wire

{C}{C}{C}{C}        5.  A conical nut

When I had a closer view of the screw installed in the wall only a hook was visible outside. This hook was used for tightening. This means all the other parts are placed around this screw. So, our first part in designing would be a screw.

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