CN203297250U - Durable hexagonal screw - Google Patents

Abstract

The utility model discloses a durable hexagonal screw, comprising an upper layer structure and a lower structure of a head part, wherein the outer part of the upper layer is a hexagon, when a spanner is used for turning the screw, the hexagon can be clamped, the side surface of the lower layer is used for being fitted to a to-be-fastened article, and the outer part of the lower layer is a hexagon. The durable hexagonal screw has the advantages that the structure of the head part of the hexagonal screw is improved, and the outer part of the lower layer structure, which is fitted to the to-be-fastened article, of the heat part is made into the hexagon which can be used as a clamping part when the spanner is used for turning the screw without influencing the effect of the structure of the layer, so that the service life of the screw is prolonged, and replacement caused by damage of screw loose of the hexagon is reduced.

Description

A kind of durable HEX HEAD CAP SCREWS

Technical field

The utility model relates to a kind of HEX HEAD CAP SCREWS of using as the connection fastening piece.

Background technique

The head construction of HEX HEAD CAP SCREWS has up and down two-layer, and the outside on upper strata is Hexagon, clamps this position when spanner turns screw, and the outside of lower floor is circular, and its side surface is used for and fastened object laminating.HEX HEAD CAP SCREWS, in use owing to repeatedly by the Hexagon on spanner clamping upper strata, being turned, causes the sliding tooth of Hexagon on this upper strata, and screw directly damages, and often will change.

The model utility content

The model utility purpose: for the problems referred to above, the purpose of this utility model is to provide a kind of durable HEX HEAD CAP SCREWS, improves its working life, reduces replacement frequency.

Technological scheme: a kind of durable HEX HEAD CAP SCREWS, comprise the upper and lower double-layer structure of head, the outside on described upper strata is Hexagon, clamps this position when spanner turns screw, its side surface of described lower floor is used for and fastened object laminating, and the outside of described lower floor is Hexagon.

Beneficial effect: compared with prior art, the utility model has the advantages that the head construction to HEX HEAD CAP SCREWS improves, Hexagon is made in its outside of substructure of head and the laminating of fastened object, when not affecting this layer structure function, clamping part when also can be used as spanner and turning screw, improve the working life of screw, reduce because the sliding tooth of Hexagon damages and change.

Description of drawings

Fig. 1 is the utility model structural front view;

Fig. 2 is the left view of Fig. 1.

Embodiment

Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiments only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.

As shown in accompanying drawing 1,2, a kind of durable HEX HEAD CAP SCREWS, its head construction have up and down two-layer, upper strata 1 and lower floor's 2 double-layer structures, the outside on upper strata 1 is Hexagon, the outside of lower floor 2 is Hexagon, when inner hexagon spanner or outer hexagonal spanner turn screw, can clamp the Hexagon of 1 outside, upper strata, also can clamp the Hexagon of lower floor 2 outsides, be used alternatingly, reduce hexagonal degree of wear, extend the working life of HEX HEAD CAP SCREWS.

Claims (1)

1. durable HEX HEAD CAP SCREWS, the upper strata (1) and lower floor (2) double-layer structure that comprise head, the outside on described upper strata (1) is Hexagon, when turning screw, spanner clamps this position, its side surface of described lower floor (2) is used for and fastened object laminating, and it is characterized in that: the outside of described lower floor (2) is Hexagon.

Images