M12 Fine Thread Hex Bolts

GB/T 5785 Fine Thread Hex Bolts are bolts that possess specific and well-defined specifications. The GB/T 5785 standard meticulously specifies the dimensions, mechanical properties, and various other related requirements of these fine-thread hexagon head bolts. The term "fine thread" indicates that the thread spacing of the bolt is relatively smaller. This characteristic of GB/T 5785 Fine Thread Hex Bolts is beneficial as it helps to significantly increase the contact area between the bolt and the nut, thereby enhancing the tightness and reliability of the connection.

Pictures

Product drawing

Product Specification

Some introduction about our company

Certification

Jinan Star Fastener Co., Ltd. has obtained the 2015 version of ISO9001 quality management system certification through the scientific management of leaders of various departments and the pursuit of high quality for bolts and other fasteners. In addition, the laboratory owned by Star Company has obtained the certification in 2017. It passed the national CNAS certification in 2018, and the company passed the European CE certification in 2018.

Testing Equipment

Jinan Star Fastener Company attaches great importance to product quality and is equipped with complete quality inspection equipment, such as tensile testing machines, torque testers,metallographic microscopes, optical projectors, salt spray test chambers, coating thickness gauges, etc., which are used to test the tensile strength and elongation of fastener products and evaluate the mechanical properties of products. These equipment ensure that every link from raw materials to finished products can be strictly controlled in quality.

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.

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.

Packing

FAQ

1. How exactly should one go about choosing the appropriate GB/T 5785 Fine Thread Hex Bolts? 

When it comes to selecting the specifications and grades of GB/T 5785 Fine Thread Hex Bolts, a multitude of factors must be taken into consideration. For instance, the thickness of the connecting material, the load that needs to be endured, as well as the specific use environment, and so on. It is highly recommended that customers provide detailed usage scenarios and requirements. In this way, our dedicated sales staff will be able to assist you in making the most appropriate selection and providing valuable recommendations. 

2. What specific advantages do fine thread hexagon head bolts possess when compared with ordinary bolts?

Fine thread hex head bolts are characterized by having a smaller thread spacing. This unique feature is extremely beneficial as it helps to significantly increase the contact area between the bolt and the nut. As a result, it greatly improves the tightness and reliability of the connection. In addition, when subjected to vibration and impact loads, fine-thread bolts exhibit better resistance to loosening. 

3.How can one ensure that the purchased bolts are in compliance with the GB/T 5785 standards? 

The fine thread hexagon head bolts produced by our manufacturer are meticulously produced and inspected in strict accordance with the GB/T 5785 standard. You can rest assured when making a purchase. If necessary, we can provide relevant product quality certification documents and detailed test reports.