Patent ID: 11879487
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A self-tapping fastener comprising:
a head having a first diameter, configured to allow a torque-applying tool to apply a torque on the head to drive the self-tapping fastener for rotation;
a body portion, arranged distally of the head and elongately formed along a longitudinal direction, the body portion comprising:
a cylindrical proximal threaded portion having a second diameter,
a non-threaded intermediate portion, the non-threaded intermediate portion having a cutting edge that extends from a distal end of the proximal threaded portion to a cylindrical distal threaded portion, the non-threaded intermediate portion having a third diameter, the third diameter being smaller than the first diameter,
wherein the cylindrical distal threaded portion extends from a distal end of the cutting edge of the non-threaded intermediate portion, the cylindrical distal threaded portion having a fourth diameter, the fourth diameter being smaller than the second diameter, and

a cutting tip, arranged distally of the body portion and comprising at least one cutting surface.