Abstract: A spacer assembly for spaceably coupling a first and second component with a threaded connection bolt, each one of the first and second component provided with one or more fitting apertures. The spacer assembly includes a support member, a base member, and a spacer member having resilient friction elements configured to provide an interference fit engagement with a predetermined friction force with a threaded connection bolt, during use.

Abstract: A spacer assembly for spaceably coupling a first and second component with a threaded connection bolt, each one of the first and second component provided with one or more fitting apertures. The spacer assembly includes a support member, a base member, and a spacer member having resilient friction elements configured to provide an interference fit engagement with a predetermined friction force with a threaded connection bolt, during use.

Abstract: A retaining device (1) including: a box-like element (5) designed so that it can be inserted so as to pass through a perforation (4) of parts to be connected; a pivot (8) mounted inside the box-like element rotatably about an axis (A) of symmetry thereof and provided with a head (9) arranged on the outside of the box-like element; and a pair of elastically deformable wings (10) mounted in an angularly integral manner on the pivot (8) and projecting from opposite sides transversely so as to jut out through a pair of opposite through-windows (11) formed in a side wall (12) of the box-like element (5) and designed to assume an elastically deformed or retracted configuration, in which they are fully folded up inside the box-like element (5).

Abstract: Self-adjusting spacer device, including a bushing having a cavity with a longitudinal axis, a pin having a shank inserted into said cavity and a head projecting outside of said cavity, the cavity of the bushing and the pin being provided with respective threaded portions that do not extend over the entire circumference of the pin and the cavity, and the pin being rotatable relative to the bushing between (i) an adjustment position in which the threaded portion of the pin is disengaged from the threaded portion of the bushing and the pin is capable of moving axially with respect to the bushing, and (ii) a locking position in which the threaded portion of the pin engages the threaded portion of the bushing and in which the pin is locked axially with respect to the bushing.

Abstract: A fastener includes a head and snap-engaging portion that includes: —a shank projecting from the head and having a proximal end connected to the head and a distal end spaced from the head, and—two elastic arms in the form of a V, with respective first ends connected to the distal end and respective second ends arranged in the proximity of the head and spaced in the transverse direction on opposite sides of the shank, so as to form an arrow head shape, wherein the snap-engaging portion includes a substantially U-shaped retaining structure having two open ends connected integrally to the respective second ends of the elastic arms and a rounded portion which surrounds without contact the distal end of the shank, wherein the retaining structure has two snap-engaging seats which are open outwards, each being situated between the rounded portion and a respective open end.

Abstract: Retaining device (1) including: a box-like element (5) designed so that it can be inserted so as to pass through a perforation (4) of parts to be connected; a pivot (8) mounted inside the box-like element rotatably about an axis (A) of symmetry thereof and provided with a head (9) arranged on the outside of the box-like element; and a pair of elastically deformable wings (10) mounted in an angularly integral manner on the pivot (8) and projecting from opposite sides transversely so as to jut out through a pair of opposite through-windows (11) formed in a side wall (12) of the box-like element (5) and designed to assume an elastically deformed or retracted configuration, in which they are fully folded up inside the box-like element (5).

Abstract: A fastener includes a head and snap-engaging portion that includes: —a shank projecting from the head and having a proximal end connected to the head and a distal end spaced from the head, and—two elastic arms in the form of a V, with respective first ends connected to the distal end and respective second ends arranged in the proximity of the head and spaced in the transverse direction on opposite sides of the shank, so as to form an arrow head shape, wherein the snap-engaging portion includes a substantially U-shaped retaining structure having two open ends connected integrally to the respective second ends of the elastic arms and a rounded portion which surrounds without contact the distal end of the shank, wherein the retaining structure has two snap-engaging seats which are open outwards, each being situated between the rounded portion and a respective open end.

Abstract: Self-adjusting spacer device, comprising: a bushing having a cavity with a longitudinal axis, a pin having a shank inserted into said cavity and a head projecting outside of said cavity, the cavity of the bushing and the pin being provided with respective threaded portions that do not extend over the entire circumference of the pin and the cavity, and the pin being rotatable relative to the bushing between: an adjustment position in which the threaded portion of the pin is disengaged from the threaded portion of the bushing and the pin is capable of moving axially with respect to the bushing, and a locking position in which the threaded portion of the pin engages the threaded portion of the bushing and in which the pin is locked axially with respect to the bushing.

Abstract: A water draining plug which can be inserted in a hole in a horizontal wall, comprising a peg-like element having a head, whose dimensions are greater than the diameter of said hole and which is provided with a plurality of apertures for the passage of water, a shank extending downward from said head, and a helical formation extending radially from a portion of said shank; and a cup-like cover having a lower wall connected to a lower end of said shank, a discharge aperture in said lower wall, a side wall in contact with outer edges of said helical formation and an upper edge which can contact the lower surface of said wall around said hole.