Abstract:
A fastener with multiple thread characteristics includes a shank and head. The shank has a penetrating tip distal most from the head. The shank includes a first, conventional thread formation formed therein adjacent the penetrating tip and a second, anti-back-out thread formation adjacent the conventional thread formation, between the conventional thread formation and the head.
Abstract:
A fastener (10) with multiple thread characteristics includes a shank (12) and head (14). The shank (12) has a penetrating tip (22) distal most from the head (14). The shank (12) includes a first, conventional thread formation (24) formed therein adjacent the penetrating tip (22) and a second, anti-back-out thread formation (26) adjacent the conventional thread formation (24), between, the conventional thread formation (24) and the head (14).