duplex nail
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/f/f3/Willst%C3%A4tter_Duplex_nail_e17.png)
Noun
[edit]duplex nail (plural duplex nails)
- A nail with a collar designed to prevent it from being driven flush, making it easy to remove, used for temporary structures.
See also
[edit]duplex nail on Wikipedia.Wikipedia