US PATENT SUBCLASS 411 / 395
.~ Having bore therethrough

Current as of: June, 1999
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411 /   HD   EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER

378  DF  EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC. {16}
395.~ Having bore therethrough

DEFINITION

Classification: 411/395

Having bore therethrough:

(under subclass 378) Subject matter provided with a longitudinal extending cavity.

(1) Note. The bore is generally provided to allow for lubricating material to be passed from one area to another.