The difference between non-metallic nylon lock nut and hexagonal nut

The difference between non-metallic nylon lock nut and hexagonal nut

Non-metallic insert nylon self-locking nut anti-loosening refers to the threaded connection after expected tightening, resistance to external shock, vibration, or variable load under the action of the outside world, as well as in the high temperature or temperature change is significant, the ability of the coupling performance weakened, is not a comparison of the size of the torque shown in the workforce to loosen.

A nylon insert self-locking nut is a very common and widely used self-locking nut. The structure is the nylon ring embedded in the head of the nut. Its working principle is a non-metallic insert nut in the screw; the bolt threads will be naturally extruded in the nylon circle into a thread so that it and the bolt threads form a close fit, and in the nylon elasticity under the action of friction resistance, to achieve the purpose of anti-loosening.

Like our joint nylon lock nut, a non-metallic insert nut has threaded holes embedded in nylon blocks and other non-metallic materials.

Working principle: non-metallic insert nylon lock nut in the screw, the bolt threads will be naturally extruded into the nylon circle screw line so that it and the bolt threads form a close fit, and in the nylon elasticity under the action of friction resistance, to achieve the purpose of anti-loosening.

Features: non-metallic insert nylon lock nut assembly torque is more stable, anti-loosening is very reliable, and can be used in shock vibration occasions;

If you need help finding a non-metallic nylon lock nut and hexagonal nut style that meets your requirements, contact our customer service team at adelajonly@gmail.com or www.juxinfasteners.com.

It can be reused, but the anti-loosening effect will be reduced; compared with the all-metal lock nut, the non-metallic insert lock nut will not damage the surface coating of the bolt after use.

Precautions: non-metallic insert nylon lock nut is not suitable for use in high-temperature conditions, the applicable temperature range -50 ℃ ~ 100 ℃; should not be used in inorganic acids or strong alkali environment conditions; in the assembly, if you find that the nylon ring rotation, you have to change the nut; if reuse, can not be repeatedly installed more than 20 times. Due to the existence of inserts, the friction between non-metallic insert nuts and threads will increase, thus improving the tightness of threads. Therefore, they are usually used on occasions that do not require high-strength fastenings, such as electrical appliances, electronics, instruments, meters, furniture, daily necessities, and other fields.

Definition and Usage of Non-metallic Insert Nylon Lock Nuts and Hexagon Nuts：

A non-metallic insert nylon lock nut is similar to a hexagonal nut in structure but with different functions. It is mainly used in high-vibration environments of mechanical equipment, which can increase friction and make the nut difficult to loosen. The hexagonal nut is commonly used in fixed components or connecting bolts.

Structural characteristics of non-metallic insert nylon lock nuts and hexagon nuts：

1. Structure of non-metallic nylon locknuts

This non-metallic insert nylon lock nut is a type of threaded hole embedded nylon block, screwing, bolt, and nylon block of interference with the friction resistance, thus preventing the fastener from loosening. It is very reliable in preventing loosening, but the disadvantage is that it is poorly reusable, the nylon block is easily damaged when repeatedly screwed in and out, and the small holes in the threads where the nylon block is mounted can lead to severe stress concentrations. Another type of this non-metallic insert nylon lock nut is to be embedded in the upper end of the nut with a nylon ring whose inner diameter is slightly smaller than the warp of the threads, known as non-metallic insert nylon lock nut. Its ability to prevent loosening also comes from the nylon material and the bolt screwed together due to the frictional resistance generated by the interference fit. Non-metallic inserts are inlaid with a layer of non-metallic material (generally nylon 66) around the internal threads of the nut when tightened to play a locking effect—typically used for non-removable occasions.

2. Structure of hexagonal nuts

A hexagonal nut, also known as a hexagonal nut, is a hexagonal-shaped fastener. It comprises three parts: the hexagonal nut body, the top plane, and the thread. The hexagonal nut body is made of high-strength alloy steel processed by heat treatment, surface treatment, and other processes, which have high strength, reliability, and corrosion resistance characteristics.

Hexagonal nuts and screws, bolts,

and screws with each other, the use of connecting the role of fastening machine parts. One of the most widely used by the 1-type six nuts is C nuts for surface roughness, precision requirements of the machine, equipment, or structure; A and B nuts for the surface are more polished, higher precision requirements of the machine, equipment, or structure. 2-type hexagonal nut thickness M thicker, often used when installing and dismantling the occasions. Hexagonal thin nuts are thinner in thickness M and are primarily used when the surface space of the connected machine parts is restricted.

A hexagonal nut usually has six faces, each with an internal thread that can be rotated onto a bolt. The nut's design allows it to withstand forces in both vertical and rotational directions, and its hexagonal shape makes it easier to handle.

3. Characteristics of Hexagon Nuts

High strength: Hexagonal nuts are made of high-strength alloy steel, which has high tensile strength and torque-carrying capacity and can be used on occasions with high strength requirements.

Easy to install, dismantle, and fasten: Hexagonal nuts have a hexagonal structure, which can be easily rotated using crampons or wrenches for quick installation and dismantling. When working, the nut can be tightly fixed by the threads of the object to be fastened.

Stable performance: Hexagonal nuts are not prone to sliding during installation, ensuring the stability and reliability of fastening.

Various specifications: Hexagonal nuts are available in several different sizes and strength levels to meet the needs of other fields and assembly requirements.

WIDELY USED: Hexagonal nuts are commonly used in machinery, automobiles, electronics, construction, and other fields, guaranteeing the regular operation of machines and equipment.

Points of using JIS Medium-Strength Steel Hex Nuts：

These metric nuts meet JIS (Japanese Industrial Standard) B 1181. Made from Class 8 steel, they're suitable for fastening most machinery and equipment. With a zinc-plated or zinc-yellow-chromate-plated finish, they resist corrosion in wet environments.

1. Select the correct size and strength grade: When using hexagon nuts, the proper size and strength grade should be selected to ensure they meet the fastening and safety needs.

2. Use the correct tool: The proper tool (wrench or plate hand) should be used to ensure the tightening effect of hexagonal nuts.

3. Avoid excessive or insufficient tightening: In the process of fastening, excessive or inadequate tightening should be avoided, resulting in loosening or damage to the nut and other situations.

Summarize：

Although non-metallic insert nylon locknuts and hexagon nuts have similarities in structure, they differ in function and use. Non-metallic insert nylon lock nuts are mainly used in mechanical equipment requiring high shock and vibration resistance, while hexagonal nuts are commonly used for fixing components or connecting bolts. Therefore, it is necessary to choose the right type of nut according to the actual need when using it.

Hexagonal nuts have high strength characteristics, easy installation, disassembly and fastening, stable performance, etc., and are widely used in machinery, automobiles, electronics, and other fields. When using hexagonal nuts, the correct size and strength level should be selected, and the proper tool should be used to avoid over or under-tightening.