Patent ID: 7958617

Claim:
Screw ( 1 ) for electrical connection of a cable terminal to a railway track, comprising a base body ( 2 ) having: an elongated shank ( 3 ) having a longitudinal axis (L), a strike head ( 4 ) connected with a first end of the shank ( 3 ), means ( 6 ) for removable connection of a strike organ or nut ( 5 ) with a second end of the shank ( 3 ) opposite said first end, said screw ( 1 ) further comprising: a support element ( 7 ) manufactured separately from the base body ( 2 ) and associated to the strike head ( 4 ) so as to form a stroke ( 11 ) that defines a cavity ( 9 ) turned towards the second end of the shank ( 3 ), wherein the screw ( 1 ) is pre-assembled and comprises means ( 10 , 8 ) for making a substantially irreversible connection of the support element ( 7 ) to the base body ( 2 ), in which the support element ( 7 ) and the base body ( 2 ) are coupled such that they rotate together around the longitudinal axis (L).