socket bolt

Webster's Dictionary (GCIDE)

1.An opening into which anything is fitted; any hollow thing or place which receives and holds something else; as, the sockets of the teeth. [1913 Webster]

His eyeballs in their hollow sockets sink.— Dryden.[1913 Webster]

2.Especially, the hollow tube or place in which a candle is fixed in the candlestick. [1913 Webster]

3.(Electricity) the receptacle of an electric lamp into which a light bulb is inserted, containing contacts to conduct electricity to the bulb. [PJC]

4.(Electricity) the receptacle fixed in a wall and connected by conductive wiring to an electrical supply, containing contacts to conduct electricity, and into which the plug of an electrical device is inserted; -- called also a wall socket or outlet. The socket will typically have two or three contacts; if three, the third is connected to a ground for safety. [PJC]

And in the sockets oily bubbles dance.— Dryden.[1913 Webster]

Socket bolt (Mach.), a bolt that passes through a thimble that is placed between the parts connected by the bolt.

Socket chisel. Same as Framing chisel. See under Framing.

Socket pipe, a pipe with an expansion at one end to receive the end of a connecting pipe.

Socket pole, a pole armed with iron fixed on by means of a socket, and used to propel boats, etc. [U.S.]

Socket wrench, a wrench consisting of a socket at the end of a shank or rod, for turning a nut, bolthead, etc., in a narrow or deep recess. [1913 Webster]