DIN 931 Bolt

The head of the DIN 931 bolt is hexagonal, enabling easy rotation with a wrench or wrench socket, facilitating operation during installation and removal. The threaded part is partially threaded and is suitable for scenarios where a bolt needs to pass through the connection and a nut is installed on the other side. The length and diameter of DIN 931 bolts are strictly regulated to ensure correct usage in different projects. For instance, take the high-temperature resistant bolt 4Cr10Si2Mo external hexagonal bolt DIN 931. This is a high-temperature and corrosion-resistant bolt made of 4Cr10Si2Mo material and is widely used in fields such as chemical industry, environmental protection, and aerospace. The bolt exhibits excellent durability in extreme environments and can effectively prevent material deformation and reduction of fatigue life.

Pictures

Product drawing

Product Specification

Some introduction about our company

Workshop

The workshop of Jinan Star Fastener Co., Ltd. is the core area of the company's production and manufacturing, with advanced production equipment. The reasonable layout of the workshop and the scientific production process ensure the efficient production and high-quality output of fastener product

Production equipment

In order to meet the needs of different customers, the company has introduced a series of advanced production equipment, such as multi-station cold heading machines, thread rolling equipment, heat treatment equipment, shot blasting machines, sand blasting machines, electroplating lines and other surface treatment equipment, and fully automatic packaging equipment. These equipment not only improve production efficiency, but also ensure the consistency and stability of product quality.

Exhibition

Jinan Star actively participates in various exhibitions in the fastener industry. On the one hand, it expands its customer base, and on the other hand, it keeps up with the development trend of the fastener industry, understands customer needs, and then makes improvements in quality, service, etc.

Our Customers

Our bolts, screws and other fasteners are exported to many countries including the United States, Germany, Australia, Japan, etc. Since the establishment of the factory in 1968, we have accumulated many long-term partners. Jinan Star has been committed to providing customers with high-quality bolts and other fasteners. For this reason, our products and team will be trusted by customers and move towards a brighter future together.

FAQ

1. What does the DIN 931 bolt refer to? Answer: DIN 931 is a German industrial standard.The head of this bolt is hexagonal, which is convenient for rotation with a wrench or socket wrench, which is very convenient during installation and removal. DIN 931 hexagonal bolts are available in a variety of materials, including carbon steel, alloy steel and stainless steel, and can be customized. 2. What materials can be provided for DIN 931 bolts? Answer: DIN 931 hexagon head bolts can be offered in various materials, including carbon steel, alloy steel, and stainless steel. Customization is supported. 3. Can bolts with special surface treatments be provided? Answer: Certainly. We can supply bolts with different surface treatments such as galvanizing, blackening, hot-dip galvanizing, and more. These treatments can enhance the corrosion resistance and service life of the bolts. 4. Have your products passed quality inspections? Answer: Yes. We strictly conduct quality inspections in accordance with the DIN 931 standard. The company has a nationally recognized laboratory to examine the size, strength, and surface quality of each product.