Connector for mechanical interconnection of a first panel to a second panel comprising: a first guide heel adapted for insertion into a first guiding recess of the first panel, the first guide heel having a first guiding direction, and a second guide heel adapted for insertion into a second guiding recess of the second panel, the second guide heel having a second guiding direction, a first resiliently arranged locking lug adapted for insertion into a first locking recess arranged in the first guiding recess, the first locking lug having a first locking direction which differs from the first guiding direction, a second resiliently arranged locking lug adapted for insertion into a second locking recess arranged in the second guiding recess, the second locking lug having a second locking direction which differs from the second guiding direction, wherein the first locking lug protruding from a surface of the first guide heel in an unloaded condition, which is an opposite condition to a depressed condition of the resiliently arranged locking lug and the second locking lug protruding from a surface of the second guide heel in an unloaded condition, which is an opposite condition to a depressed condition of the resiliently arranged locking lug, and the respective locking lug (33, 34) is resiliently arranged in the connector and is depressible into the connector when depressed such as the locking lug (33, 34) does not protrude from the surface (31a, 32a), characterized by that at least one of the locking lugs (33, 34) is arranged at a resilient tongue (53, 54) arranged in a cut-out (53a, 54a) in at least one of the first or the second guide heels (31, 32), or by that the first and second locking lugs (33, 34) are arranged at respective ends of a common u-shaped connecting element of the connector, which connecting element is flexibly arranged to the connector between ends of the first guide heel and the second guide heels. a first guide heel adapted for insertion into a first guiding recess of the first panel, the first guide heel having a first guiding direction, and a second guide heel adapted for insertion into a second guiding recess of the second panel, the second guide heel having a second guiding direction, a first resiliently arranged locking lug adapted for insertion into a first locking recess arranged in the first guiding recess, the first locking lug having a first locking direction which differs from the first guiding direction, a second resiliently arranged locking lug adapted for insertion into a second locking recess arranged in the second guiding recess, the second locking lug having a second locking direction which differs from the second guiding direction, wherein the first locking lug protruding from a surface of the first guide heel in an unloaded condition, which is an opposite condition to a depressed condition of the resiliently arranged locking lug and the second locking lug protruding from a surface of the second guide heel in an unloaded condition, which is an opposite condition to a depressed condition of the resiliently arranged locking lug, and the respective locking lug (33, 34) is resiliently arranged in the connector and is depressible into the connector when depressed such as the locking lug (33, 34) does not protrude from the surface (31a, 32a), characterized by that at least one of the locking lugs (33, 34) is arranged at a resilient tongue (53, 54) arranged in a cut-out (53a, 54a) in at least one of the first or the second guide heels (31, 32), or by that the first and second locking lugs (33, 34) are arranged at respective ends of a common u-shaped connecting element of the connector, which connecting element is flexibly arranged to the connector between ends of the first guide heel and the second guide heels.