Knurled fastener with cutting edges and removable head

Details Knurled fastener with cutting edges and removable head Knurled fastener with cutting edges and removable head

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 25/04 (2006.01) F16B 15/06 (2006.01) F16B 31/00 (2006.01)

Patent

CA 2465394

A novel fastener comprises a head having a recess for receiving a rotary driver, a shank having knurls defined by generally helical grooves and intersecting generally annular grooves, wherein a plurality of the knurls include a lateral cutting edge, and a generally pointed tip. Another novel fastener comprises a head having a recess for receiving a rotary driver, a shank having a predetermined diameter small enough so that the head will break away from said shank upon application of a predetermined torque, and said shank having knurls defined by generally helical grooves and intersecting generally annular grooves.

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