Stainless Steel 304 316 M3 M8 M10 K Nut Hex K Teeth Lock Rotating Crimping Nut External tooth locking nuts

This series of stainless steel external tooth locking nuts (also known as K-type nuts, toothed anti-loosening nuts, crown nuts) is an integrated anti-loosening fastener specifically designed for vibration conditions. It features built-in anti-slip teeth and is designed as a single unit with a hexagonal nut body and an outer multi-tooth structure. No additional anti-loosening washers are required; the friction force generated by the tooth engagement with the workpiece surface can achieve dual anti-loosening and anti-slip effects. It is an upgraded version of the ordinary hexagonal nuts for anti-loosening purposes.

The product is made of high-quality 304 stainless steel, with original non-coated rust prevention, and the threads are processed by precision rolling. The engagement is tight and not easy to slip. The peripheral tooth shape is formed by cold forging as a single unit， with sharp tooth tips and high hardness， which can firmly engage with the workpiece surface， preventing the nut from loosening or slipping in vibration and impact conditions. At the same time， it has the advantages of corrosion resistance， high temperature resistance， and convenient installation， and is widely applicable to various conventional connection scenarios and those with slight anti-loosening requirements.

Core structure: The hexagonal nut body is integrated with the peripheral multi-tooth anti-slip structure, without welding or splicing. The tooth shape has high hardness and firm engagement.

Material selection: The regular model is made of 304 stainless steel. Customization is available for 316 stainless steel, carbon steel galvanized / blackened models.

Surface treatment: The stainless steel is in its natural color without coating. It is shiny and free of burrs, with inherent rust prevention properties and does not contaminate the workpiece surface.

Specification coverage: The thread specifications include M3, M4, M5, M6, M8, and M10. Non-standard specifications can also be customized.

Performance: Anti-loosening and anti-slip, corrosion-resistant, vibration-resistant, high-temperature resistant, suitable for regular and mild vibration working conditions.

Installation compatibility: It can be directly matched with all standard metric bolts and screws, without the need for additional accessories, and has high compatibility.

Integral toothed anti-loosening, no need for additional washers

The outer part comes with a multi-toothed anti-slip structure. When tightened, the tooth tips can embed into the surface of the workpiece, forming mechanical interlocking friction force. No additional spring washers or flat washers are required to achieve the anti-loosening and anti-slip effect. This reduces the number of components and simplifies the installation process, while avoiding the problems of lost or失效 of washers.

Stainless steel with inherent rust prevention， suitable for complex working conditions

Made of 304 stainless steel， with a chromium content of 18%-20%， it can form a dense oxide film in humid， acidic， and outdoor environments， resistant to salt spray and corrosion. It does not rust or corrode over a long period of use and is suitable for corrosive scenarios such as kitchens， outdoors， and industrial workshops， significantly reducing maintenance and replacement costs.

Precise thread processing， stable engagement without slippage

The thread is processed by a CNC thread rolling machine with precise rolling. The tooth shape is regular and the tolerance is strictly controlled. The internal thread accuracy can reach ±0.01mm， perfectly matching standard metric bolts. The tightening is smooth without jamming， and the good engagement performance is maintained even after repeated disassembly and assembly， without slippage or disengagement.

Easy and efficient installation， compatible with common tools

The hexagonal nut body is compatible with common wrenches for installation， no special tools required. A single person can complete the installation quickly， especially suitable for batch assembly scenarios. The installation efficiency is increased by more than 30% compared to the "nut + anti-loosening washer" combination， while reducing the cost of component management.

Wide range of specifications， strong versatility

It covers the full range of standard specifications from M3 to M10， suitable for the thread connection requirements of most electronic devices， appliances， sheet metal parts， and small machinery. A single nut can match the corresponding standard bolts， with extremely strong versatility， making procurement much more convenient.

Q1: Can I reuse the nylon lock nut?

A: In most cases, nylon lock nuts are designed for single-use. Once the nylon insert has been deformed during tightening, its locking performance may be compromised if reused. It is recommended to use a new nut for each application to ensure optimal security.

Q2: What is the difference between your nylon lock nut and a regular nut?

A: The main difference lies in the presence of the nylon insert. A regular nut relies on friction and torque to stay in place, while our nylon lock nut has the additional self-locking mechanism provided by the nylon insert. This makes our nut more resistant to loosening due to vibration and other external forces.

Q3: Are your nylon lock nuts compliant with international standards?

A: Yes, our nylon lock nuts are manufactured in accordance with international standards such as ISO and ANSI. We ensure that our products meet or exceed the required quality and performance criteria.

Q4: How do I store the nylon lock nuts to maintain their quality?

A: Store the nylon lock nuts in a dry, cool place away from direct sunlight and moisture. Avoid storing them in areas where they may be exposed to chemicals or extreme temperatures. Keeping them in their original packaging or a sealed container will help maintain their quality.