The Collaborative International Dictionary of English v.0.48:

Sneck \Sneck\, n.
   A door latch. [Scot. & Prov. Eng.]
   [1913 Webster]

   Sneck band, a latchstring. --Burns.

   Sneck drawer, a latch lifter; a bolt drawer; hence, a sly
      person; a cozener; a cheat; -- called also sneckdraw.

   Sneck drawing, lifting the latch.
      [1913 Webster]