Specializing in the production of various anti loosening gaskets

Support customization of various materials and specifications to help you solve difficult problems in various construction environments.

Learn More

Advanced production and processing equipment

The company has an isothermal salt furnace heat treatment line, is equipped with transverse vibration testing equipment, and has a professional R&D team to safeguard industrial safety.

Learn More

The product has a wide range of applications

Widely used in precision machinery, aerospace, high-speed rail, chemical industry, photovoltaics, bridge engineering and many other fields.

Learn More

Wide range of product sales

The product sells well in various provinces in China and is exported to many overseas countries such as Europe, America, South Asia, Africa, Australia, etc.

Learn More

Founded in 2025

About Us

High strength locking, multiple material options, and support for customization!

Handan Jootlock New Materials Technology Co., Ltd. is a high-tech enterprise specializing in the resea···

Learn More

Warranty (days)180+ Employees50+ Clients300+

Application of double-sided tooth anti-loosening washers

precision machinery

Double-sided tooth anti-loosening gasket, with closely interlocking tooth surfaces, is applied in precision ma···

Learn More

Application of double-sided tooth anti-loosening washers

Double layered self-locking washer application

The photovoltaic field

Double layered self-locking washers are suitable for the photovoltaic industry. They can withstand strong wind···

Learn More

Double layered self-locking washer application

French gasket application

Scenarios of strong vibration and alternating loads on high-speed railways

The French conical knurled anti-loosening gasket relies on the interlocking of conical surfaces for locking. I···

Learn More

Butterfly washer application

Aerospace

Butterfly washers, with their elastic compensation capabilities, are applied in the aerospace field. They can ···

Learn More

Double layered self-locking washer application

Bridge Engineering

The double-layer self-locking washer, relying on the interlocking structure of interlocking, is widely used in···

Learn More

Application of double-sided tooth anti-loosening washers

Chemical industry

The double-sided tooth anti-loosening gasket relies on the meshing of double-sided tooth patterns and is suita···

Learn More

PRODUCTS

The company has an isothermal salt furnace heat treatment line, is equipped with transverse vibration testing equipment, and has a professional R&D team to safeguard industrial safety.

Double-layer self-lo··· Details

Butterfly gasket Details

NF E25-511 French ga··· Details

Double-sided tooth anti-loosening gasket

Double-sided tooth a··· Details

Quality advantage

Products undergo multiple layers of inspection, with strict process control to ensure that every item meets the standards before leaving the factory.

Supply advantage

We always keep a large inventory, ensuring no shortage during peak seasons and stable supply.

Customized advantages

Supports customization in various specifications, styles and materials to meet different usage requirements.

After-sales advantage

We offer a 180-day quality issue return and exchange guarantee. The round-trip shipping costs will be borne by the factory!

NEWS

Update the anti-tightness firmware gasket product for industry trends!

Upgrading high-end equipment, butterfly washers and special anti-loosening washers expand the market of aerospace, chemical and precision machinery

NEWS Upgrading high-end equipment, butterfly washers and special anti-loosening washers expand the market of aerospace, chemical and precision machinery 2026-10-18

Recently, butterfly washers and double-sided anti loosening washers have been continuous···

The demand for anti-loosening gaskets has exploded driven by new energy, and overseas orders for photovoltaic brackets have grown significantly

NEWS The demand for anti-loosening gaskets has exploded driven by new energy, and overseas orders for photovoltaic brackets have grown significantly 2026-10-18

In 2026, the construction of photovoltaic power stations will continue to expand. Strong···

NEWS The localization of high-end anti-loosening gaskets is accelerating, and imported products are being replaced in batches in rail transit 2026-10-18

In the first half of 2026, domestic fastener manufacturers successfully passed the relia···

EVALUATE

Real feedback from global customers and partners.

LinSenGerman precision equipment manufacturer 5.0★★★★★

We use butterfly washers and double-sided toothed anti loosening washers in precision machinery and aerospace testing components. Under cyclic loading, the elastic compensation of the gasket is stable and will not scratch the surface of the workpiece. The tolerance control is excellent, and suppliers can quickly customize samples for R&D projects.

Olivia ChenAmerican photovoltaic engineering contractor 5.0★★★★★

We are testing your company's double-layer self-locking washers on photovoltaic brackets in the desert. The strong wind and vibration environment is extremely challenging. One year of on-site tracking showed no loosening of the fasteners. It is easy to install, significantly reducing on-site operation and maintenance costs, and its quality is superior to that of previous European suppliers.

Markus WeberEuropean rail transit procurement 5.0★★★★★

We have been using your judicial gaskets in the bogies of rail vehicles for 18 months, and the bolts have not loosened under conditions of strong vibration and significant temperature differences. The dimensional accuracy is stable, the surface anti-corrosion treatment complies with European standards, the batch delivery is stable, and new projects will continue to purchase in large quantities.

Jootlock makes every connection more secure!

Leave the project conditions and specifications requirements, and we will contact you within 1 working day.