Detailed explanation of common standards for 12.9 grade high strength screws?

Grade 12.9 high-strength screws are usually mainly used in injection molding and machinery industries. Because of its own advantages, it is a very popular product in these industries. Next, we will explain the common standards for this 12.9-grade high-strength screw. If you are not very clear, then take a look.

When the 12.9-level high-strength screw is used, there are actually many knowledge points about it, such as its three elements and regular standards. You don't have to worry. As a professional manufacturer of our 12.9-grade high-strength screws, we are here to tell you about it.

Generally speaking, the materials used in the production of screws in the factory are mainly from NIPPON STEEL and SUMTOMO. METALS company imported chromium molybdenum alloy steel, to ensure that the raw materials from the beginning in the front. Many factories have invested heavily in the purchase of TXG surface blackening from TOYO-RO, Japan. The factory has a complete material mechanical performance laboratory, through CNLA and A2LA certification, sampling inspection and filing of each batch of screws leaving the factory, ensuring the stability and traceability of quality.

These are the three most important elements in the production of 12.9-grade high-strength screws, which you will understand after reading today. Our company is a professional fastener manufacturer specializing in the production, development and sales of fasteners. It is a large domestic manufacturer specializing in the production of 12.9-grade high-strength screws. If necessary, you can contact us.

Next, let's introduce the high-strength screw regular standard that everyone is more concerned about. In fact, this product is a series commonly used in high-strength bolt series. Grade 12.9 high-strength screws are generally used in occasions with high mechanical performance requirements. Such as injection molding machinery, hydraulic equipment, mold assembly and other places.

Its surface hardness after heat treatment can reach 39-44 degrees. At the time of production, it is also produced with reference to German standard DIN912, national standard GB/T70.1, American standard and English standard. At present, the common 12.9-grade high-strength screws on the market are knurled and non-knurled. Under normal circumstances, hexagon socket screws with knurled are 12.9-grade bolts, and those without knurled are low-strength hexagon socket bolts, like 4.8-grade socket Hexagon bolts do not have knurling. This will be distinguished when purchasing. Be sure to choose products suitable for your occasion according to your own needs.

Surface cyanide blackening treatment, the product itself also has a certain anti-rust function. In order to meet the needs of customers, the sales branch in all kinds of hole processing, thread processing tools, tool products, etc., the agent of some well-known domestic brands. The company's products are widely used in automotive, machinery, mold, electronics and construction industries and other fields. Welcome to call here to consult.

To sum up, we know the common standards for grade 12.9 high-strength screws. If you still don't understand anything, you can consult our customer service personnel. There are also professional customer service personnel to serve you 24 hours a day. If you have any questions, please feel free to consult them.