Turn-buckle
Pronunciation : Turn"-buc`kle, n. (Mech.) (a) A loop or sleeve with a screw thread at one end and a swivel at the other, -- used for tightening a rod, stay, etc. (b) A gravitating catch, as for fastening a shutter, the end of a chain
Part of Speech : or
Definition :
a hasp.
Source : Webster's Unabridged Dictionary, 1913