DIN 557 Square Nuts

 DIN 557 square nut, also known as square nut or square nut, has a square shape and complies with DIN557 standard. This nut comes in different specifications and sizes, including M5, M6, M8, M10, M12, M16, etc. Each specification has a corresponding maximum and minimum value. Square nuts are a type of welding nuts and are mainly used in power engineering, road transportation, home building materials and other industries. The metal is melted at high temperature and then welded between the two products to tighten it. The fastening effect of this connection is very good and it is not easy to loosen. At the same time, square nuts can also be used with bolts.

Pictures

Product drawing

Product Specification

Some introduction about our company

Application

Our products are widely used in mechanical, electrical, automotive, building construction, railways, bridges, steamships, fire protection and communication system, etc.

Workshop

Certification

Through scientific management, Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification. In 2017, the laboratory passed the national CNAS certification. In 2018, the company passed the European CE certification.

Testing Equipment

Our company has a specialized laboratory with digital hardness testers, microscopes, universal testing machines, axial force meters, hydrogen embrittlement detection devices, magnetic particle flaw detectors, metallographic analyzers, carbon and sulfur analyzers and salt spray testing machines, etc. Experimental testing equipment is used to conduct comprehensive testing of the chemical composition of raw materials, product hardness, mechanical properties, coating thickness and corrosion resistance to ensure that all products meet standard requirements and satisfy customers.

Production equipment

Our company has more than 300 production equipment.The product production process includes: Annealing, shot blasting, cold heading, thread rolling, heat treatment, galvanizing, finished product testing, packaging, etc. are all completed in the company.

Packing

Service

1. We have a professional sales and customer service team to help solve the problems you encounter when using DIN 557 square nuts and improve customer satisfaction.

2. Focus on the production of high-quality square nuts, and conduct quality inspections on the produced DIN 557 square nuts to ensure that the products meet the requirements of the DIN 557 standard.

3. Provide explanations about the DIN 557 standard so that you can learn more about the installation and use precautions of DIN 557 square nuts.

4.DIN 557 square nuts fully comply with the customer's engineering requirements, improving product adaptability and reliability.

5. Customize DIN 557 square nuts of different sizes, materials, and surface treatments to meet your diverse needs.

FAQ

1. Can you customize DIN 557 square nuts with a specific size or material for me?

Of course, we can provide customized DIN 557 square nuts according to customers' specific needs.

2. How to use DIN 557 square nuts? Is it easy to operate?

For any problems you have during use, our technical staff can help you at any time. When installing, make sure the square nut matches the bolt or threaded hole and use appropriate tools for tightening. When using, be careful not to over-tighten to avoid damaging the nut or threads.

3. If there is a problem with product quality during use, do you provide after-sales service?

No problem, we provide perfect after-sales service. If you encounter any problems during use, you can contact us at any time, and we will provide customers with solutions and technical support as quickly as possible.