Invention Grant
US08904622B2 Method of installing a fastener to secure metal panel to wood element 有权
安装紧固件以将金属板固定在木质元件上的方法

Method of installing a fastener to secure metal panel to wood element
Abstract:
Fasteners are provided that include a head and having a head, a tip end having a tip, a first body portion having first threads having a pitch angle, and a second body portion having second threads, the second threads having a different pitch than the first threads. The first body portion is adjacent to the tip end of the fastener and extends a first distance along a length of the fastener towards the head end. The second body portion is adjacent to the first body portion, and extends the head end of the fastener and extending a second distance along the length of the fastener towards the head end.
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