Patent ID: 9140288
Filing Date: 2015-09-22
Classification: B60T,F16B

Abstract:
1. A pipeline fastener comprising a screw head, a hollow shank outwardly extended from said screw head, and a plurality of threaded units spirally disposed on said shank, wherein said shank includes an outer wall in contact with an outside, a channel being enclosed by an inner wall defined inside said shank, one end of said channel opposite to said screw head being communicated with said outside, at least one hole enclosed by a bore surface being formed on said shank; wherein said bore surface of said hole is connected to a chip-removing surface which is jointed to said inner wall, a chip-removing section being enclosed by said chip-removing surface, whereby said chip-removing section is defined between said channel and said hole, a diameter of said chip-removing section being bigger than a bore diameter of said hole.