Bolt apparatus for calculating threaded bolt tension and method of manufacture

Abstract

Threaded bolt having a distal insertion end and a proximal head-end and a threaded shank extending In between, said shank having a longitudinal axis, wherein the distal insertion end comprises a first distal portion that comprises the outermost distal end of the distal insertion end, said outer-moat distal end being eccentrically located with respect to the central axis of the shank, the first distal portion defining a circumferentially continuous, smooth, non-threaded surface, in which a second distal portion, in proximal direction, connects to said first distal portion, said second distal portion defining a circumferentially continuous, smooth, non-threaded, right-circular cylindrical surface, which is located centrically with respect to the central axis of the shank, wherein the first distal portion has been provided with surfaces, the generatrix of which has a straight course and is inclined with respect to the longitudinal axis.

Dependencies are inferred from the claim text.