FORM 2
The Patents Act 1970
(39 of 1970)
&
The Patent Rules 2003
COMPLETE SPECIFICATION
(See Section 10 and rule 13)
TITLE OF THE INVENTION: HEX- HEX SCREW
APPLICANT:
LARSEN & TOUBRO LIMITED
L&T House, Ballard Estate, P.O. Box No. 278,
Mumbai, 400 001, Maharashtra,
INDIA.
PREAMBLE OF THE DESCRIPTION:
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED

A) TECHNICAL FIELD
[0001] The present invention generally relates to screws and particularly relates to variety of screws which can be turned using Plurality of tools.
B) BACK GROUND OF THE INVENTION
[0002] Presently, screws are used extensively instead of nails to fasten things together. The screw has a head that can be used for easy turning through a variety of tools. The head is usually larger than the body of the screw. The head keeps the screw from being driven deeper than the length of the screw and further provides a bearing surface. The variety of tools that are used for easy turning includes an open-end wrench, a hexagonal wrench, a socket wrench, an Allen wrench and a screw driver.
[0003] However, the regular screws are designed to be adapted for turning by a particular tool of a particular size only. Therefore, to turn a particular screw in the existing technique, user needs a particular tool of a particular size from different tools of different sizes.
[0004] Hence there exists a need to provide an improved design for a screw which is adapted to provide access to any of a variety of tools to turn the screw.
[0005] The above mentioned shortcomings, disadvantages and problems are addressed herein and which will be understood by reading and studying the following specification.
C) OBJECT OF THE PRESENT INVENTION
[0006] The primary object of the present invention is to provide a screw which can be turned using variety of tools.

[0007] Another object of the present invention is to provide a screw that can be turned using a hexagonal wrench,
[0008] Yet another object of the present invention is to provide a screw that can be turned using an open end wrench.
[0009] Yet another object of the present invention is to provide a screw that can be tuned using an Allen wrench.
[0010] Yet another object of the present invention is to provide a screw that can be tuned using a screw driver.
[0011] Yet another object of the present invention is to provide a screw with more flexibility for using in places where there are space restrictions.
[0012] Yet another object of the present invention is to eliminate space constraints by using standard head size for the screw.
[0013] These and other objects and advantages of the present invention will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings.
D) SUMMARY OF THE INVENTION
[0014] The various embodiments of the present invention provide a screw with a head having a hexagonal round contour, a socket and rectangular slots provided on top surface of the head. The hexagonal head in the screw is adapted for turning using an open end wrench and with a tool slot in the upper surface of the hexagonal head is adapted for turning using a hex wrench and an Allen wrench.

[0015] According to one embodiment of the present invention, the head has one socket provided on top. The socket has a hexagonal shaped slot which is used for turning the screw using a hex wrench or an Allen wrench.
[0016] According to one embodiment of the present invention, the internal hexagonal round includes a conical relief for ease of turning using one or more wrenches.
[0017] According to one embodiment of the present invention, the hexagonal head includes the hexagonal round contour on the side walls for turning the screw using at least one of an open ended wrench, a close ended or box-end wrench, an Allen wrench and a socket wrench.
[0018] According to one embodiment of the present invention, the rectangular slots are located at diagonally opposite corners on the top surface of the hexagonal head for turning using a screwdriver. The hexagonal slot is provided on the top surface of the screw for turning using the hex wrench or an Allen wrench.
[0019] According to one embodiment of the present invention, the shank is provided with a threading.
E) BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The other objects, features and advantages will occur to those skilled in the art from the following description of the preferred embodiment and the accompanying drawings in which:
[0021] FIG. 1 illustrates a perspective view of the screw indicating the various provisions for turning the screw according to one embodiment of the present invention.

[0022] FIG. 2 illustrates the top view of the screw with the hexagonal head according to one embodiment of the present invention.
[0023] FIG.3 illustrates the side view of the screw according to one embodiment of the present invention.
[0024] FIG.4 illustrates the cut away sectional view of the screw according to one embodiment of the present invention.
[0025] FIG.5 illustrates the turning method using open ended wrench according to one embodiment of the present invention.
[0026] FIG.6 illustrates the turning method using an Allen wrench according to one embodiment of the present invention.
[0027] Although the specific features of the present invention are shown in some drawings and not in others. This is done for convenience only as each feature may be combined with any or all of the other features in accordance with the present invention.
F) DETAILED DESCRIPTION OF THE INVENTION
[0028] In the following detailed description, a reference is made to the accompanying drawings that form a part hereof, and in which the specific embodiments that may be practiced is shown by way of illustration. These embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments and it is to be understood that the logical, mechanical and other changes may be made without departing from the scope of the embodiments. The following detailed description is therefore not to be taken in a limiting sense.

[0029] The various embodiments of the present invention provide a screw with a head having a hexagonal round contour on the outer surface forming a hexagonal head, rectangular slots provided on top surface of the hexagonal head, and the hexagonal slot provided on the top surface in the middle of the head. The hexagonal head of the screw is adapted for turning using an open end wrench and with a hexagonal tool slot in the upper surface of the hexagonal head adapted for turning using a hex wrench and an Allen wrench.
[0030] The socket is in a form of an internal hexagonal round. The internal hexagonal round includes a conical relief for ease of turning using one or more wrenches. The hexagonal head includes the hexagonal round contour on the side walls for turning the screw using the open ended wrench, close ended, box-ended wrench or a socket wrench. The rectangular slots are located at diagonally opposite corners on the top surface of the hexagonal head for turning using a screwdriver. The shank is provided with a threading.
[0031] FIG. 1 illustrates a perspective view of the screw indicating the various provisions for turning the screw according to one embodiment of the present invention. The screw includes a hexagonal head and a shank. The hexagonal head includes a hexagonal round contour on its side walls 102 for turning the screw using one or more wrenches. The one or more wrenches include at least one of an open end wench, a close end wrench and a socket wrench.
[0032] The hexagonal head of the screw includes a socket in the form of an internal hexagon round 104. This is used for turning the screw using an Allen wrench. Further the internal hexagonal round 104 is similar in design to contour of an outer hexagonal round profile of the screw. The internal hexagonal round 104 further includes a conical relief for ease of turning the screw.
[0033] The top surface of the screw head includes rectangular slots 106 and the rectangular slots 106 are located at diagonally opposite corners on the top surface of the

screw head. The rectangular slots 106 are provided on the screw head for turning using a screw driver. The screw further includes a shank and is provided with a threading 108.
[0034] FIG. 2 illustrates a top view of the screw with a hexagonal head according to one embodiment of the present invention. FIG.3 illustrates a side view of the screw according to one embodiment of the present invention. While with respect to F1G.2 AND FIG.3, the hexagonal head of the screw includes a socket in the form of an internal hexagon round 104. The hexagon round is used for turning the screw using the hex wrench or an Allen wrench. The internal hexagonal round 104 is similar in design to contour of an outer hexagonal round profile of the screw. The top surface of the screw head includes rectangular slots 106 and the rectangular slots 106 are located at diagonally opposite corners on the top surface of the screw head. The rectangular slots 106 are provided on the screw head for turning using the screw driver. The hexagonal head top edge is chamfered 202 based on the head size of the screw.
[0035] FIG.4 illustrates the cut away sectional view of the screw according to one embodiment of the present invention. The top surface of the screw head includes two rectangular slots 106. The hexagonal head of the screw includes the socket in the form of the internal hexagonal round 104 that can be used for turning using the Allen wrench. The internal hexagonal round 104 further includes a conical relief 402 for ease of turning. The screw further includes a shank and is provided with a threading 108.
[0036] FIG.5 illustrates the method of turning using the open ended wrench according to one embodiment of the present invention. FIG.6 illustrates a perspective view of the Allen wrench for turning the screw according to one embodiment of the present invention. With respect to FIG.5 and FIG.6, the hexagonal head includes the hexagonal round contour on the side walls for turning the screw using the open ended wrench 502. The hexagonal head in the screw is adapted for turning using an open end wrench 502. The hexagonal head of the screw includes the socket in the form of the internal hexagon round 104 and can be used for turning using an Allen wrench 602. Further the internal hexagonal round 104 is similar in design to a contour of an outer

hexagonal round profile of the screw. The top surface of the screw head includes two rectangular slots 106. The rectangular slots 106 are located at diagonally opposite corners on the top surface of the screw head. The rectangular slots 106 are provided on the screw head for turning using a screw driver. The screw further includes a shank and is provided with a threading 108.
G) ADVANTAGES OF THE INVENTION
[0037] The advantage of the present invention includes providing an option to use plurality of tools for turning the screws based on the availability of the tool. The present invention provides an adaptable screw that can be turned using plurality of turning methods under given space constraints due to which it increases the flexibility,
[0038] Although the invention is described with various specific embodiments, it will be obvious for a person skilled in the art to practice the invention with modifications. However, all such modifications are deemed to be within the scope of the claims.
[0039] It is also to be understood that the following claims are intended to cover all of the generic and specific features of the present invention described herein and all the statements of the scope of the invention which as a matter of language might be said to fall there between.

CLAIMS
What is claimed is:
1. A screw comprising:
a head;
a hexagonal round contour on the outside of head;
a socket;
one or more rectangular slots provided on top surface of the head; and
Wherein the head of the screw has a hexagonal round contour which and is
adapted for turning using an open end wrench or close ended wrench and wherein
the head has a tool slot in the top surface, which is adapted for turning using at
least one of a hex wrench and an Allen wrench.
2. The screw of claim 1, wherein the socket is in a form of an internal hexagonal round.
3. The screw of claim 2, wherein the internal hexagonal round provides for turning using an Allen wrench.
4. The screw of claim 2, wherein the internal hexagonal round further comprises a conical relief for turning the screw using a tool.
5. The screw of claim 1, wherein the head comprises the hexagonal round contour on the side walls for turning the screw using the open ended wrench,
6. The screw of claim 1, wherein the head comprises the hexagonal round contour on the side walls for turning the screw using the close ended wrench.
7. The screw of claim 1, wherein the head comprises the hexagonal round contour
on the side walls for turning the screw using the socket wrench.

8. The screw of claim 1, wherein the rectangular slots are located at diagonally opposite corners on the top surface of the hexagonal head.
9. The screw of claim 8, wherein the rectangular slots are provided for turning using a screwdriver.
10. The screw of claim 1 further comprising a shank, wherein the shank is an elongated portion extending from a base of the hexagonal head.
11. The screw of claim 10, wherein the shank is provided with a threading.
12. The screw of claim 1, wherein the hexagonal head top edge is chamfered based on head size of the screw.