Drill screw

Details Drill screw Drill screw

F - Mech Eng,Light,Heat,Weapons

16

B

85/107

F16B 25/00 (2006.01) F16B 25/10 (2006.01)

Patent

CA 1275188

ABSTRACT OF THE DISCLOSURE A drill screw having a head, a male thread section and a drilling section, the screw comprising a web on top of the drilling section, the web having an elongated recess in its central portion, wherein the recess spilts the web into chisel edges each rising toward the re- spective ridges.

498769

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