| 摘要 |
A timber fastener and method of manufacturing and utilizing the same wherein the fastener includes a shaft having a center axis, a head end, and a tip end. The shaft has a first threaded portion proximate the tip end and a second threaded portion proximate the head end and having off-timed threads in relation to the first threaded portion. The off-timing of the second threaded portion threads results from such structural features as: a pre-selected defined distance separating the first and second threaded portions; different thread and flank angles; different thread pitches; and/or a different thread direction relative to the first threaded portion. |
