Tapping screw

Details Tapping screw Tapping screw

F - Mech Eng,Light,Heat,Weapons

16

B

85/107

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

Patent

CA 1288980

ABSTRACT OF THE DISCLOSURE A tapping screw having a tapered edge at a rear part of the tapered portion at its tip. The drill edge has the maximum diameter which is larger than the maximum thread diameter at the tapered portion and smaller than the maximum thread diameter at the shank. The drill edge allows the screw to be driven in more securely with a smaller driving force.

543106

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