'Set nut' definitions:

Definition of 'Set nut'

From: GCIDE

Set \Set\ (s[e^]t), a.
1. Fixed in position; immovable; rigid; as, a set line; a set countenance. [1913 Webster]
2. Firm; unchanging; obstinate; as, set opinions or prejudices. [1913 Webster]
3. Regular; uniform; formal; as, a set discourse; a set battle. "The set phrase of peace." --Shak. [1913 Webster]
4. Established; prescribed; as, set forms of prayer. [1913 Webster]
5. Adjusted; arranged; formed; adapted. [1913 Webster]
Set hammer. (a) A hammer the head of which is not tightly fastened upon the handle, but may be reversed. --Knight. (b) A hammer with a concave face which forms a die for shaping anything, as the end of a bolt, rivet, etc.
Set line, a line to which a number of baited hooks are attached, and which, supported by floats and properly secured, may be left unguarded during the absence of the fisherman.
Set nut, a jam nut or lock nut. See under Nut.
Set screw (Mach.), a screw, sometimes cupped or printed at one end, and screwed through one part, as of a machine, tightly upon another part, to prevent the one from slipping upon the other.
Set speech, a speech carefully prepared before it is delivered in public; a formal or methodical speech. [1913 Webster]