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Stainless steel self-tapping bolt

A stainless steel, bolt technology, applied in the direction of screws, threaded fasteners, connecting components, etc.

Inactive Publication Date: 2012-05-09
JIANGSU ZHENYA SPECIAL SCREW
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide a stainless steel self-tapping bolt, which can avoid passivation or deformation damage of the thread set on the stainless steel self-tapping bolt during the process of screwing the object, In order to avoid the disadvantages that cause the screw lock to be unsmooth or unable to screw the object tightly

Method used

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Examples

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Embodiment Construction

[0013] Such as figure 1 , figure 2 As shown, a stainless steel self-tapping bolt includes a screw 1 and a cutting assembly 2, the cutting assembly 2 is arranged on the head of the screw 1, and the head of the screw 1 is provided with a locking groove 4, and the The locking groove 4 is a hexagonal groove, and the rear end of the cutting assembly 2 is provided with a locking boss 5, and the locking boss 5 is a hexagonal cylinder, and the locking groove is 4 is matched with the locking boss 5, and the cutting part 2 is detachably connected with the screw rod 1; the cutting component 2 is provided with a thread 3, and the thread 3 is continuous with the thread of the screw rod 1, and the The cutting assembly 2 has a conical thread edge structure, the thread 3 provided by the cutting element 2 gradually forms a conical structure from bottom to top, and the thread 3 provided by the cutting element 2 matches the thread of the screw 1 continued catch.

[0014] The cutting assembly...

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Abstract

The invention discloses a stainless steel self-tapping bolt, comprising a screw and a cutting assembly, wherein the cutting assembly is disposed on the head part of the screw; the cutting assembly is detachably connected with the screw; the cutting assembly is provided with a thread; the thread is spliced with the thread of the screw; the cutting assembly is a conical thread-edge structure; the thread disposed on the cutting assembly gradually forms a conical structure from bottom to top; and the thread disposed on the cutting assembly is matched and spliced with the thread of the screw. The thread disposed on the stainless steel self-tapping bolt is prevented from being passivated or deformed and damaged during a process of screw-locking an object, thereby avoiding the occurrence of a defect that the screw-locking is unsmooth or the object cannot be tightly screw-locked.

Description

technical field [0001] The invention relates to a fastening component, in particular to a stainless steel self-tapping bolt. Background technique [0002] Although stainless steel has the advantage of not rusting, due to the poor rigidity of stainless steel, when self-tapping bolts made of stainless steel are used, the cutting end integrally formed at the front end is easily passivated by friction with objects under high-speed rotation. , and cause the object of drilling to be unsmooth, and even have the disadvantage of being unable to penetrate the object. Chinese patent CN2837584 discloses a stainless steel self-tapping bolt, including a screw rod and a cutting assembly, the screw rod is made of a stainless steel material; it is characterized in that the rear end of the screw rod is integrally formed with a head, and the front end of the screw rod is provided with a The axial center line of the screw is the screw hole in the center of the circle; the cutting assembly is m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B25/00F16B35/04
Inventor 杭汉林
Owner JIANGSU ZHENYA SPECIAL SCREW
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