An underlayment system for a roof structure including underlayment material disposed in covering relation to a roof deck and a plurality of mechanical fasteners disposed and structured to interconnect the underlayment material to the roof deck. Each mechanical fastener includes an outer plate, an under plate and a connector penetrating through both the outer plate and under plate in secured relation to the roof structure. The under plate is disposed and structured to sealing engage the connector penetrating there through. The under plate is further disposed in engagement with an undersurface of said outer plate and beneath and in segregating relation between an outer peripheral edge of the outer plate and the underlayment material.

An underlayment system for a roof structure including underlayment material disposed in covering relation to a roof deck and a plurality of mechanical fasteners disposed and structured to interconnect the underlayment material to the roof deck. Each mechanical fastener includes an outer plate, an under plate and a connector penetrating through both the outer plate and under plate in secured relation to the roof structure. The under plate is disposed and structured to sealing engage the connector penetrating there through. The under plate is further disposed in engagement with an undersurface of said outer plate and beneath and in segregating relation between an outer peripheral edge of the outer plate and the underlayment material.

A gutter downspout extension support is used to support the free end of a downspout extension above the ground. The gutter downspout extension support has a clip with a first and second connected legs that are disposed overlapping and at a spaced distance from one another thereby providing a narrow gap therebetween that is configured to removably receive in a friction fit a bottom wall of the downspout extension. A ground engaging support stake having a first end and a tapered second end and a pivot coupling connecting the first end of the ground engaging support stake to the clip such that the ground engaging support stake is pivotable toward and away from the clip.

An example target pin is disclosed having a body for a removable shaft. The body has a base and a support structure configured to retain the removable shaft substantially perpendicular to the base when the removable shaft is assembled in the support structure of the body. The removable shaft is assembled in the body and is then ready for use by press it through a target into a target backing to hold the target securely in place on the target backing during archery or other target shooting.

A grommet (200, 300, 400), a stud (102), an assembly of a grommet and a stud forming a fastener (100), and a method of assembling a grommet and a stud to form a fastener has the grommet with an interengaging element (250) in a channel wall of the grommet for engaging a cooperating, compatible or complementary interengaging element in a wall of the stud. The grommet and the stud can be assembled by moving the grommet and the stud relative to each other until the interengaging element in the grommet engages the complementary interengaging element in the stud. A family of grommets is described.

An anchor assembly for hanging an object on a wall includes a first anchor component and a second anchor component. The first anchor component includes a base having front, back, top, bottom, left and right sides, and at least one wall penetrating retainer extending from the base and having a wall penetrating extent that protrudes rearwardly of the base and has a downwardly curved configuration. The second anchor component includes a base having front, back, top, bottom, left and right sides, at least one wall penetrating retainer extending from the base of the second anchor component and having a wall penetrating extent that protrudes rearwardly of the base of the second anchor component and has a curved configuration. The second anchor component is pivotably associated with the first anchor component for movement between an anchoring orientation and a non-anchoring orientation.

Various embodiments of the present disclosure provide a nail with a head having an inwardly curved top surface. In one embodiment, the nail has a longitudinal axis and comprises a head, a shank, and a tip. The head includes a top portion and a bottom portion. The top portion includes an inwardly curved top surface forming a partially spherical cavity, while the bottom portion includes a radially inwardly tapered annular bottom surface. The shank is integrally connected to and extends from the bottom portion of the head. The tip is integrally connected to and extends from the shank and terminates in a free end.

Various embodiments of the present disclosure provide a nail with a head having an inwardly curved top surface. In one embodiment, the nail has a longitudinal axis and comprises a head, a shank, and a tip. The head includes a top portion and a bottom portion. The top portion includes an inwardly curved top surface forming a partially spherical cavity, while the bottom portion includes a radially inwardly tapered annular bottom surface. The shank is integrally connected to and extends from the bottom portion of the head. The tip is integrally connected to and extends from the shank and terminates in a free end.

A hook mounting system of a unibody structure with three platforms that face an angled hole. The hook system includes nails adapted to be particularly suitable for mounting the hook and platform deformable inserts to receive the nails. The system is adapted for a rod hanging assembly. The system includes a nail having a non-circular shank portion and a knurled head.

A hook mounting system of a unibody structure with three platforms that face an angled hole. The hook system includes nails adapted to be particularly suitable for mounting the hook and platform deformable inserts to receive the nails. The system is adapted for a rod hanging assembly. The system includes a nail having a non-circular shank portion and a knurled head.