ALLEN SCREW

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A screw with a hexagonal hole in the head

Classified under:

Nouns denoting man-made objects

Hypernyms ("Allen screw" is a kind of...):

screw (a fastener with a tapered threaded shank and a slotted head)

Credits