A one-piece plastic fastener is disclosed as being designed to be pushed on a threaded stud. The fastener has a head portion and a cylindrical body portion. The cylindrical body portion is formed with a pair of diametrically opposed rib sections extending the length of the body portion with the rib sections having equally spaced arcuate segments. In the interior of the cylindrical body portion a resilient wing member is integrally formed inwardly of the arcuate segment. A pair of longitudinally extending narrow ridges are formed on the interior of the cylindrical body with a thickness selected to cause the resilient wing members to be brought into threaded engagement with the threaded stud as the fastener is pushed onto the stud.

A push button is provided which is adaptable for pressing onto a stud having redges extending radially therefrom. The push button is provided with at least one resilient finger protruding from the wall of a blind hole formed in the shank of the button. The resilient finger is angularly disposed toward the center of the blind hole such that the end face of the finger is disposed behind a ridge with the push button positioned on a stud. The push button is provided with an opening for each resilient finger, which opening extends from outside the button towards the locality of the end face of the resilient finger and is of a dimension to eclipse, or cover the cross-section of the resilient finger when projected onto the plane of the opening.

A method of installing trim employs a Snap Tack fastener which allows the trim to snap on and off when needed. The Snap Tack includes a ball head screw which snaps into a small plastic receptacle. In a typical application, several ball head screws are screwed into the back side of some floor molding. The molding, with the screws in place, is pressed against a wall where the molding is to be fastened. Enough pressure is applied to have the ball screws leave small indentations in the wall. Holes are drilled at the indentations, and the receptacles are installed in the holes. The molding with its screws can then be snapped into place and later removed when needed.

A two-piece molded plastic support assembly for mounting on a wall or door panel of a storage refrigerator or freezer compartment, comprises a grommet member which is insertable into a preformed hole from the front side of the panel and further comprises a support member which is detachably mounted on the grommet member to operatively engage a shelf or drawer or a door handle for the storage compartment. The grommet member has a grommet shank insertable into the hole on the panel's front side (prior to in-situ application of liquid insulating foam to the panel's rear side). The grommet shank comprises a resilient annular grommet flange engageable with the panel's front side to seal the panel hole against foam or air leakage and also comprises releasable exterior locking tabs for engaging the panel's rear side to lock the grommet member in place and to effect sealing action of the grommet flange. The grommet shank also has a blind bore extending axially thereinto from its front end. The support member comprises a support shank which has resiliently flexible tabs thereon which frictionally engage the grommet bore. The support member also comprises a rigid flange which overlies the grommet flange and transfers the load to the panel instead of the grommet.

A brush member is arranged for fixed securement to a step plate of a vehicle such as a truck and the like, such that the foot brush includes a bottom wall fixedly secured to the step plate, with a top wall including a bristle brush web matrix projecting from the top wall. A modification of the invention includes a lid arranged for positioning over the brushes to depress the brushes in an enhanced removal of debris therefrom for subsequent cleaning.