초록 ▼

A fastener for use in securing wallboard such as drywall to a supporting structure includes a shank having a bugle head at one end and a tapered point at an opposite end, an annular ring flange and anti-clockwise threads disposed on the shank adjacent the head portion to auger and recompact particul

A fastener for use in securing wallboard such as drywall to a supporting structure includes a shank having a bugle head at one end and a tapered point at an opposite end, an annular ring flange and anti-clockwise threads disposed on the shank adjacent the head portion to auger and recompact particulate material which exhausts from the tapping threads during insertion of the fastener, and to tuck the outer sheeting layer evenly beneath the bugle head of the fastener.

대표청구항 ▼

A method for securing a section of wallboard including particulate matter enclosed, in part, by an outer layer of sheeting to a supporting structure, the method comprising the steps of: introducing into the wallboard, through the outer sheeting layer, a fastener having a shank with a head at a first

A method for securing a section of wallboard including particulate matter enclosed, in part, by an outer layer of sheeting to a supporting structure, the method comprising the steps of: introducing into the wallboard, through the outer sheeting layer, a fastener having a shank with a head at a first end and a tapered point at an opposite end, the shank of the fastener having a first portion including the tapered point and a second portion disposed axially toward the head of the fastener, the first portion having tapping thread convolutions extending from the tapered point and spiraling in a first direction and terminating prior to the second portion; the second portion having thread convolutions spiraling in a reverse direction to the threads on the first portion; the fastener further including an annular ring flange disposed on the shank prior to the divergence of the lateral surface of the head; rotating the fastener so that the tapered point proceeds through the wallboard toward the supporting structure; causing the reverse threads on the second portion of the fastener to engage the particulate material in the wallboard and auger the particulate material around the shank toward the supporting structure; and causing the flange to tuck the outer layer of sheeting away from the head portion during the initial penetration of the head portion beneath the exterior surface of the wallboard.