Abstract: A muntin bar clip and an insulated glass unit employing the clip are provided, wherein the clip has a base, a tree for engaging the hollow end of a false muntin bar extending upward from the base, and a wedge extending downward from the perimeter of the base, wherein the wedge tapers as it extends away from the base. The wedge is inserted between one of the sheets of glass and a foam spacer frame when the clip is installed. The face of the wedge that is in contact with the foam spacer frame may be provided with a projection, such as an inverted tetrahedron shape, to increase frictional resistance to movement of the clip along the spacer frame, without compromising the seal between the spacer frame and the glass.

Abstract: The present invention 10 discloses an anchor fastener for mating parts to a channel 30 for, e.g., the attachment of muntin in a window 14 design. The end clip 15 of the preferred embodiment is comprised of molded polymeric material having means for aligning the clip with a channel and means for locking the clip to the channel. The clip is comprised of a base 16 having an upwardly extending post 18 that forms means for mounting other parts to the fastener. The post 18 can be of any shape, size or length depending on the part to be mated onto the post. Three spaced apart rails 24, 26 are formed under the base 16 to transversely engage the channel 30 with the center rail 24 also having a transverse slot 36 for matingly locking with the channel. The channel 30 has spaced apart notches 32 with tabs 34 positioned therebetween on opposing sides of the channel.