THREADED FASTENER AND RELATED METHOD OF INSTALLATION
First Claim
1. A fastener comprising:
- a head including an upper portion and a lower portion, the upper portion includinga cylindrical outer surface and transitioning to the lower portion, the lower portion being of a frustoconical configuration;
a shaft joined with the lower portion and extending away from the head, the shaft extending along an axis away from the head, the shaft terminating at a conical end; and
a thread coiling around the shaft toward and terminating proximal the conical end,wherein the head defines a hole in the form of a star including six points,wherein the hole defined by the head includes three equal point-to-point dimensions, each of the dimensions being about 0.128 inches,wherein the head defines a thickness between the outermost portion of each of the six points and the respective cylindrical outer surface of the upper portion of the head, the thickness being about 0.0325 inches to about 0.035 inches,wherein the bore is defined in both the upper portion and the lower portion of the frustoconical configuration.
2 Assignments
0 Petitions
Accused Products
Abstract
A fastener including a head defining a hexalobular drive hole, a shaft, threads and a pointed end. The hexalobular drive hole can include points having an outermost portion, and the head can include an outer surface, where a thickness of about 0.01 inches to about 0.04 inches is defined between the outer surface and each respective point. The outer surface can be cylindrical, and can transition to a tapered portion that is joined with the shaft. The tapered portion can be frustoconical, angled and/or curvilinear. A related method of installation is provided for advancing the fastener into the side of a first board at an angle to fasten the first board to an underlying second board.
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Citations
20 Claims
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1. A fastener comprising:
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a head including an upper portion and a lower portion, the upper portion including a cylindrical outer surface and transitioning to the lower portion, the lower portion being of a frustoconical configuration; a shaft joined with the lower portion and extending away from the head, the shaft extending along an axis away from the head, the shaft terminating at a conical end; and a thread coiling around the shaft toward and terminating proximal the conical end, wherein the head defines a hole in the form of a star including six points, wherein the hole defined by the head includes three equal point-to-point dimensions, each of the dimensions being about 0.128 inches, wherein the head defines a thickness between the outermost portion of each of the six points and the respective cylindrical outer surface of the upper portion of the head, the thickness being about 0.0325 inches to about 0.035 inches, wherein the bore is defined in both the upper portion and the lower portion of the frustoconical configuration. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A fastener comprising:
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a head defining a hexalobular drive hole including six points, each point having an outermost portion, the head including a cylindrical outer surface, the head defining a thickness of about 0.0325 inches to about 0.035 inches between the cylindrical outer surface and the outermost portion of each respective point, the cylindrical outer surface extending parallel to a longitudinal axis at least about 0.01 to about 0.1 inches, the distance from the outermost portion of a first point to the outermost portion of a second point of the hole being about 0.128 inches; and a threaded shaft joined with the head and centered on the longitudinal axis, the threaded shaft terminating at a pointed conical end. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20)
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18. A method of installing a fastener comprising:
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providing a fastener including a head defining a hexalobular drive hole including six points, each point having an outermost portion, the head including a cylindrical outer surface, the head defining a thickness of about 0.0325 inches to about 0.035 inches between the outermost portion and each respective point, the distance from the outermost portion of a first point to the outermost portion of a second point of the hole being about 0.128 inches, the fastener including a threaded shaft joined with the head and centered on the longitudinal axis, the threaded shaft terminating at a pointed conical end; inserting the threaded shaft in a bore defined by an installation tool so that the head protrudes from above the bore; aligning the fastener along an advancement axis disposed at an angle other than a 90°
relative to a side surface of a first board;rotating the fastener to advance the fastener into the first board, the fastener head engaging the bore of the installation tool to prevent the fastener from substantially wobbling; and continuing to rotate the fastener so that it penetrates through the first board and advances into a second board to join the first board and second board.
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Specification