Patent ID: 7478987
Filing Date: 2009-01-20
Classification: F16B

Abstract:
1. A pin for fastening framing members together comprising: a first end configured to pierce framing members; a second end configured to receive a driving force; a stem extending between said first and second ends; and a set of threads extending along a portion of said stem, said threads operable to cause said stem to rotate when penetrating through framing members in response to said driving force being applied to said second end and said threads interacting with said framing members, rotation of said stem causing said threads to fasten said framing members together, wherein a first portion of said threads has a first helix angle, a second portion of said threads has a second helix angle, said second helix angle is different from said first helix angle, and said threads extend continuously from said first portion to said second portion, and at least one of said first and second helix angles varies as an associated one of said first and second portions of said threads extends along said stem.