Bolt assembly for a screwed bolt joint has a protruding thread, a bolt with a head, a nut with a holding thread and a sleeve

摘要

A screw connection means that a bolt's (1') head surface (4) turned towards a nut or a nut's surface turned towards a bolt head is chamfered towards a cone shape's (4',16') truncated cone, which is set up to fit tightly along the whole surface of a recess (11). An end surface (10) on a sleeve (6) has a correspondingly chamfered recess (11). Independent claims are also included for the following: (1) A bolt element with a head and a thread in a bolt assembly; (2) A screw element for a bolt assembly; (3) A fixed- tension sleeve.