FASTENING SYSTEM

The invention relates to a fastening system for connecting, as quickly and as simply as possible, a lifting support associated with a lifting air spring (8) to a suspension support (2) that forms part of a suspension of a semi-trailer, trailer or the like, comprising an anchoring plate (11) formed by a laminar body having an essentially arched form, that has an open connecting region (111) with a curvature radius that is substantially complimentary to the diameter of a pivoting bolt (7) located in the suspension support (2), a nut (21) being screw-coupled, on one end, to said pivoting bolt (7) or any other associated element around said pivoting bolt (7). Said anchoring plate (11) is provided with through-openings (112) for the insertion of anchoring screws (12, 12') that can pass through at least one through-opening in the lifting support (2).