Principle of anti-loosing screw function ‘Nylok®’ Vol.2 A large stock of fastener products! We supply even a small lot of one piece

17/05/2022

HANSHIN NEJI (THAILAND) CO., LTD.

The Nylok® provide a powerful anti-loosening function. In the second part of this article, we will introduce the fastening principle of the Nylok® technology.

▶What is a global standard anti loosing screw 'Nylok®' ? Vol.1

How screws can be fasten and loosen?

For you to understand how Nylok® works, firstly you need to know "why screws can be fastened?" and "why they become loosen?" This is because all anti-loosening function products, including Nylok®, they follow the principle of screw fastening.

Screws can remain fastened with the axial force and frictional force generated when they are fastened. When screw is fastened, the screw will be pulled from the place where it has been. From that moment, a force that causes the screw return to its original state, which is an axial force will be generated. When this axial force is generated, the frictional force is also generated on the faced surface (surface or threaded part) of the male and female threads, then the screws can be fastened.

So, on the other hand, why do screws come loose? It occurred when its axial force and frictional force drop. There is always a gap between male and female threads. Without the gap, it cannot be fit or insert. However, if there is vibration, shaking, or impact occurred after the screw is fastened, there will be invisible power that reduce the force. The reduction in the axial force causes the frictional force to decrease and the screw to loosen.

Nyloc

Principle of Nylok®'s fastening

Nylok® is balancing "axial force" and "frictional force" when fastening. All types of anti-loosening screws, such as spring washers, flat washers, and those with flanges are also use this principle. Nylok® is a technology which designed to increase and maintain the frictional force and to make it as easy as possible to install.

As shown in the figure below, Nylok® is not apply all around but it is basically applied on partial thread only.

▲ Standard male screw - Nylok® processing position

Standard male screw - Nylok® processing position

When a screw with Nylok® is fastened, it will be become very tight so that it cannot be fasten by hand from the point of engagement. It can be tightened with a tool such as a screwdriver, wrench, or spanner, but for Nylok® which is made of nylon, it is softer than metal and spread the shape along the threads. It can be tightened by hand, but once the Nylok® is spread over the thread, there is a force of returning occurred. For example, when a rubber ball is squeezed with a hand, it will shrink and sudden return its shape we undid, also a great force will be returned to the hand. That force is generated in the gap between the male and female threads.

When the screw is pushed into the opposite direction where Nylok® is not applied, also the frictional force will be generated on the metal-to-metal contact surface, creating a locking effect. The Nylok® processing is also reduces the original gap between the male and female threads, which makes it difficult to move in the return direction even if there are vibration or shaking occurring.

Nylok® can be installed in the same way as ordinary screws. As for the tightening torque, the loosening prevention effect will be greatly enhanced just by tightening with the same value as it is.

Nylok® processed products can be sold in Thailand as in few as just as one piece!

Nylok® processed products are coated at the factory before being supplied to customers. Generally, unit price will be higher when the quantity is small because there are a fixed cost for the process. However, at Hanshin Neji, we have created a standard specification that can be used for general purposes by many of our customers, and Nylok® processed products are stocked in advance at our head office in Japan and ready to ship from Japan to Thailand.

Example of in-stock items
・ Hexagon socket head cap screw
・ Hexagon socket countersunk screw
・ Hexagon socket set screw
・ Hexagon bolt
・ Stainless steel machine screws (pan, countersunk, truss)
・ Nut 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　

We can supply even from one piece, so please feel free to contact us for more information.
* If you are considering using our products in security concerned areas such as for railroad vehicles or nuclear power plants, please be sure to let us know.

If you are looking for anti-loosening screws (Nylok®) or have any other concerns about loosening screws, please feel free to contact us using the form as below.

Inquiry Form

Please feel free to contact us from the form as below.

We accept by phone and email.

Name Required

Company Name

Phone number

Email Required

Message Required

KOA-SHA (THAILAND) (hereinafter referred to as the "Company" or "We"), in the variety of services provided by the Company (hereinafter referred to as the "Services"), established the following privacy policy (hereinafter referred to as the "Policy").

Definition of Personal Information: The term "Personal Information" as used in this Policy, means information about a living individual which can identify the specific individual, including name, date of birth, and other descriptions (including other information that can be easily matched to identify a specific individual).

Acquisition of Personal Information: We acquire personal information by legally fair means.

Use of Personal Information

The Company shall use personal information for the purpose of business as necessary within the scope of the following.

To deliver optimized information to the individual user of the Service.
To help improve the quality of the Service by statistical analysis.
In response to inquiry in regard to the Service.
To conduct questionnaires regarding the Service.
To send information regarding campaigns and new products by the Company.
Other purposes associated with the abovementioned purposes of use.

About cookies: The Company makes use of cookies on the Service website. In addition, cookies may be used in a portion of the advertising system. A cookie is a small amount of data regarding usage history that is sent to your browser from a website’s server and is stored on the user’s hard drive. If the user prefers the Company not to make use of cookies, the user can set their browser to reject cookies. However, if the cookies are rejected, there is a possibility that the use of the Service on the website will be affected.

Provision of Information to Third Parties

The Company will not provide personal information to any third party without obtaining prior consent by the individual concerned, except as required by applicable laws and regulations.

In addition, the Company may access personal information and disclose it to third parties in the following cases.

Under Prior Consent of the Individual User Concerned
When the disclosure of personal information is required by law or judicial court, judicial orders, decisions and instructions based on laws and regulations of government agencies.
When reasonable measures are necessary to defend the rights or property of the Company.
When the disclosure of personal information is necessary to protect the lives, bodies or property of the Company, user(s), or public, and it is difficult to obtain the individual’s consent at the time.
When cooperation is necessary with a national or local government organization, or a business operator entrusted by such an organization in executing affairs under laws and regulations, and in which obtaining the consent of the user(s) is likely to impede the execution of the affairs.
In statistical data in which the disclosure or provision does not identify the user’s identity.

Management of Personal Information

The Company will maintain the accuracy of personal information and manage it safely.
The Company will take appropriate security measures to prevent the loss, destruction, tampering or leakage of personal information.
The Company will take precautionary measures against the loss, destruction, tampering, and leakage of personal information through appropriate system maintenance of the operating system and education of employees.

Request for Notification, Disclosure, Correction, Suspension of Use of Personal Information

In the case the Company receives request from the individual user regarding the disclosure, correction, addition, deletion, suspension of use, or erasure of personal information, stoppage of use by a third party or notification of use, after confirmation that the requester is the individual user, the Company will respond without delay in accordance with the Personal Data Protection Act.

Note that in the case that the request does not meet the requirements stipulated by the Personal Data Protection Act, or the reason to reject such request is permitted by the Personal Data Protection Act or other laws and regulations, the request may not be fulfilled.

In addition, there is no payment required or fees associated with the request for disclosure by the individual user. However, the cost of communication from the individual user to the Company, transportation expenses, and expenses associated with the preparation of materials for the purposes of individual identification will be the responsibility of the individual user.

Revision of Privacy Policy: The Company will review the operational status of the handling of personal information and make efforts for continuous improvement, and may change the Policy as necessary. After such changes to the Policy, the Policy will be published on the Company’s website.