Roof cover fastener
A roof cover fastener may include a cover plate having a planar body with a perimeter. A central aperture may be disposed centrally in the body. A first annular rib may be formed into the body and may encircle the central aperture. A second annular rib may be formed into the body and may encircle the first annular rib. A first channel may separate the first annular rib from the second annular rib. A medial aperture may be disposed in the channel between the first annular rib and the second annular rib. Optionally, the fastener may also include an auger element having a first end and a second end. A head may be coupled to the first end, and a tip may be coupled to the second end. A thread crest with a thread root may extend from the second end towards the first end.
1. A roof cover fastener, the fastener comprising:
a. a cover plate, the cover plate comprising:
a planar body having a perimeter,
a central aperture disposed centrally in the body,
a first annular rib formed into the body and encircling the central aperture,
a second annular rib formed into the body and encircling the first annular rib,
a first channel separating the first annular rib from the second annular rib, wherein the first annular rib and second annular rib extend above the first channel,
a first medial aperture and a second medial aperture each disposed in the first channel between the first annular rib and the second annular rib, wherein the first and the second medial apertures are symmetrically positioned relative to each other with the central aperture located in-between the first and the second medial apertures;
b. a first auger element, the first auger element comprising:
a first end and a second end,
a head coupled to the first end,
a tip coupled to the second end,
a thread crest with a thread root extending from the second end towards the first end; and
c. a second auger element, a third auger element, and a fourth auger element; and wherein the first, second, third, and fourth medical apertures are symmetrically positioned relative to each other with the central aperture located in-between the first and the second medial apertures and in between the third and fourth medial apertures, and wherein the first, second, third, and fourth medial apertures are each configured to receive an auger element as it is driven into a roof material.
2. The fastener of claim 1 , wherein the first channel has a flat planar first contact surface, the flat planar first contact surface configured to contact the roof material without penetrating the roof material.
3. The fastener of claim 1 , further comprising a fifth medial aperture and a sixth medial aperture, wherein the third and fifth medial apertures are opposingly positioned to the fourth and sixth medial apertures relative to a line of symmetry that intersects the first medial aperture, second medial aperture, and central aperture.
4. The fastener of claim 3 , wherein the first, second, third, and fifth medial apertures are each configured to receive a respective auger element as it is driven into the roof material.
5. The fastener of claim 3 , wherein the first, fourth, and fifth medial apertures are each configured to receive a respective auger element as it is driven into the roof material.
6. The fastener of claim 3 , wherein the first and fourth medial apertures are each configured to receive a respective auger element as it is driven into the roof material.
7. The fastener of claim 3 , further comprising a seventh medial aperture and an eighth medial aperture, wherein the first, second, third, fourth, fifth, sixth, seventh, and eighth medial apertures are substantially radially and uniformly positioned relative to the central aperture.
8. The fastener of claim 7 , wherein the first, second, third, fourth, fifth, sixth, seventh, and eighth medial apertures are each disposed in the first channel between the first annular rib and the second annular rib.