Thread Locking Machine Screws

Thread Locking Machine Screws are fasteners with special locking functions. They are able to provide additional locking force after installation to prevent the screws from loosening through specific designs such as thread shape, locking elements or coatings. Such screws are widely used in applications that require high reliability and long-lasting locking force.

The main function of thread locking machine screws is to provide reliable locking force to ensure that the fasteners will not loosen due to vibration, impact or temperature changes after installation. They achieve this function in the following ways:

Thread design: Special thread shapes, such as triangular tooth shapes, can increase the contact area with the assembly and improve the locking force.

Locking elements: Some screws have built-in locking elements, such as nylon rings or coatings, which deform and fill the thread gaps during installation, thereby providing additional locking force.

Coatings: Some screws are coated with special coatings, such as Dacromet coatings, which can increase the corrosion resistance and loosening resistance of the screws.

The manufacturing process of thread locking machine screws usually includes the following steps:

Material selection: Low carbon steel is selected as the raw material because it is easy to process and has a low cost.

Thread processing: The required thread shape is processed by turning, thread rolling or cold heading.

Locking element installation (if applicable): For screws with built-in locking elements, the elements need to be installed in place during processing.

Surface treatment: Electroplating, oxidation, electrophoresis and other surface treatments are performed as needed to improve the corrosion resistance and aesthetics of the screws.

Quality inspection: The finished product is inspected in terms of size, appearance, performance, etc. to ensure compliance with relevant standards and requirements.

The precision of thread locking machine screws is mainly reflected in the following aspects:

Thread accuracy: The parameters such as thread type, pitch, and thread height need to be strictly controlled to ensure the fit with the assembly.

Length and diameter accuracy: The nominal length and diameter of the screw need to comply with relevant standards, and the tolerance range is small to ensure the accuracy and reliability of installation.

Surface treatment accuracy: The uniformity, thickness and adhesion of the surface treatment also need to be strictly controlled to ensure the corrosion resistance and aesthetics of the screw.

Features

High locking force: Through special thread design or locking elements, reliable locking force is provided to prevent the screw from loosening.

Corrosion resistance: After surface treatment such as electroplating and oxidation, the screws have good corrosion resistance and are suitable for harsh environments.

Easy to install: The head design of the screw is easy to install and remove using tools such as screwdrivers.

Diversity: Screws of different materials, specifications and coatings can be provided according to different application requirements.

Advantages

Improve reliability: Thread locking machine screws can prevent screws from loosening and improve the reliability and safety of equipment.

Reduce costs: Reduce overall costs by reducing equipment failures and maintenance costs caused by loose screws.

Extend service life: Good corrosion resistance and locking force can extend the service life of screws and equipment.

Strong adaptability: It can be used for the assembly of various materials and structures to meet different application requirements.

Thread locking machine screws are widely used in the following fields:

Automotive industry: used for fastening key components such as engines and gearboxes to ensure the reliability and safety of equipment.

Electronics industry: used for fastening components such as circuit boards and housings to prevent loosening due to vibration.

Aerospace: used for fastening aircraft such as aircraft and rockets to ensure flight safety.

Mechanical manufacturing: used for fastening various mechanical equipment to improve the stability and reliability of equipment.

Construction industry: used for fastening building structures to ensure the stability and safety of buildings.

Thread locking machine screws have many advantages and a wide range of applications. When selecting and using them, it is necessary to make comprehensive considerations based on specific application requirements and working environment to ensure that they can perform at their best. At the same time, it is also necessary to pay attention to the maintenance and care of the screws to extend their service life and reduce the failure rate.