Nails

Using a hammer takes great skill
Or so my mother said
One holds it right a certain way
to hit nails on their head

Mother said my handy work
Was something of a crime
For one hit of my hammer,
I could bend that nail four times

I struggle on quite blissfully
Used string when I did fail
The ones I really struggled with
Were those crinkle-cut brass nails.

Oh, they are screws!