Abstract: A chain has interconnected links each formed by at least one endlessly and continuously circularly woven sheath of tubular shape and circular cross section made of plastic warp yarns and plastic weft yarns surrounding a core. These plastic warp and weft yarns are made of filaments of high tensile strength with a fineness-related maximum tensile strength of at least 5 cN/dtex.

Abstract: The invention relates to a tensioning device for tensioning chains (1), straps, ropes or similar tensioning means (1), comprising at least one tubular tensioning nut (2) and at least one threaded bolt (3) that is inserted into the tensioning nut (2) and is interacting with it, wherein the tensioning nut (2) and/or the threaded bolt (3) is/are equipped with a connection element (4) at the end, in particular for coupling to the tensioning means (1), and wherein the connection element (4) is movably connected to the tensioning nut (2) and/or the threaded bolt (3).

Abstract: The invention relates to a chain having a plurality of chain links (6) which are connected to one another and made from plastic threads (3, 4), characterized in that each chain link (6) is designed as an endless ring of laid cable based on the plastic threads (3, 4), in particular as a thimble.