F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/107
F16B 25/00 (2006.01) F16B 25/10 (2006.01)
Patent
CA 1041327
SELF-DRILLING AND TAPPING MASONRY ANCHOR Abstract of the Disclosure A self-drilling and tapping anchor for use in masonry structures which includes an upper, tapping thread portion and a lower, stabilizing and dust receiving shank portion intermediate the tapping thread and a drill tip. The lower shank has a cross-sectional configuration which defines a maximum and minimum radial dimension with the maximum dimension being greater than or equal to the hole being drilled to axially stabilize and support the fastener as it is drilled into the masonry. The minimum radial dimension and the wall of the hole forming a reservoir into which masonry dust is received during drilling.
275533
Ernst Richard J.
Williams Elbert E. (jr.)
LandOfFree
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