Full thread screw structure with mother hole at end

Abstract

The invention discloses a full thread screw structure with a mother hole at an end, which comprises a screw body, the screw body consists of a rod body and an end body, a head end of the rod body is radially provided with a consecutive external thread body with the structure of an external concavo convex tooth socket body, and the screw thread axial length of the external thread body is equal to the length of the rod body; The end of the screw body is radially provided with a consecutive internal thread body with the structure of the internal concavo convex tooth groove socket mother hole, and the length of the internal thread body is equal to the length of the end body at least; the proposal of adopting screw hole with internal concavo parts arranged at the end features novelty structure and convenient manufacturing; the concavo screw hole has a proper pore diameter, can keep the performance of the original screw body, increase new rear end output connection methods, and does not influence the structure strength of the original screw body; the screw hole can be made into thread methods with different specifications so as to meet different connection methods such as: metric screw thread, inch screw thread, U.S. standard screw thread and the like.

Description

technical field [0001] The invention relates to the technical field of hardware fasteners, in particular to a fully threaded screw structure with a female hole formed at the tail end. Background technique [0002] Generally, traditional screws and other fasteners mainly use the threads of the rod and the head body of the tail to achieve unidirectional tightening and parallel fastening. Therefore, according to the inherent characteristics of these fasteners, we know the connection The method is unidirectional, and if the secondary pairing or secondary connection of the tail is to be realized, it is difficult to achieve it structurally. If the secondary pairing of the fastener tail is really necessary, the original fastener must be drilled. Processing or bar welding operations; in this way, it is inconvenient and the work efficiency is relatively low in the actual production line operation. Contents of the invention [0003] The technical problem to be solved by the present...

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Problems solved by technology

[0002] Generally, traditional fasteners such as screws mainly use the threads of the rod and the head body of the tail to achieve unidirectional tightening and parallel tightening. Therefore, according to the inherent characteristics of these fasteners, we know the connection The method is unidirectional, and if the secondary pairing or secondary connection of the tail is to be realized, it is difficult to achieve it structurally. If the secondary pairing of the fastener tail is really necessary, the original fastener must be drilled. Processing or rod welding operations; in this way, it is inconvenient and the work efficiency is relatively low in the actual production line operation

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