set screw
 緊定螺釘
 Set a.
 1. Fixed in position; immovable; rigid; as, a set line; a set countenance.
 2. Firm; unchanging; obstinate; as, set opinions or prejudices.
 3. Regular; uniform; formal; as, a set discourse; a set battle. “The set phrase of peace.”
 4. Established; prescribed; as, set forms of prayer.
 5. Adjusted; arranged; formed; adapted.
 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.