A nut is a nut, which is a part that bolts or screws are screwed together for tightening. Nuts are divided into several types according to different materials: carbon steel, stainless steel, copper, etc. Common types of nuts include external hexagon nuts, square nuts, lock nuts, wing nuts, flange...
Stainless steel fasteners are a specific professional term concept that includes a wide range of products. Stainless steel fasteners are usually used to fasten more expensive machine parts because of their appearance, durability, and strong corrosion resistance.
Stainless steel standard faste...
In the process of stamping and producing metal molds, the phenomenon of poor stamping must be analyzed in detail and effective countermeasures must be taken.
The causes and countermeasures of common stamping defects in production are analyzed as follows, for the reference of mold maintenance per...
Sometimes we find that the fasteners fixed on the machine are rusted or dirty. In order not to affect the use of machinery, how to clean fasteners has become a very important issue. The performance protection of fasteners is inseparable from cleaning agents. Only by cleaning and maintaining faste...
The allen bolt is round. There are many kinds of hexagon socket bolts. It is divided into carbon steel and stainless steel according to material. Hexagon socket head screws, also known as half round head hexagon socket head screws. The countersunk hexagon bolt has flat head and hexagon. Another k...
On October 24, the General Administration of Customs released data showing that in the first three quarters of this year, China’s import and export of goods totaled 31.11 trillion yuan, up 9.9% year on year.
The proportion of import and export of general trade increased
According to custom...
High quality raw materials are the basis for producing high quality fasteners. However, many fastener manufacturers’ products will have cracks. Why does this happen?
At present, the common specifications of carbon structural steel wire rods provided by domestic steel mills are φ 5.5- φ 45, ...
“There was a sudden defect in the pump of the oil depot. Chen went to prepare the tools, and Zhang went to notify the electrician to check the insulation of the broken wire. We are going to start dismantling and repairing the oil pump.” On October 17, the State Grid Gansu Liujiaxia Hy...
From January to August 2022, the total profits of industrial enterprises above designated size nationwide were 5,525.40 billion yuan, a year-on-year decrease of 2.1%; the total profits of the manufacturing industry were 4,077.72 billion yuan, a decrease of 13.4%.
From January to August 2022, the ...
After the export volume jumped to the second place in the world for the first time in August, China’s auto export performance reached a new high in September. Among them, whether it is production, sales or export, new energy vehicles continue to maintain the growth trend of “one ride ...
my country is the largest producer of fasteners in the world. In recent years, the output of domestic fasteners has shown a fluctuating growth trend. The report shows that the output of metal fasteners in my country will increase from 6.785 million tons in 2017 to 7.931 million tons in 2021, with...
Several concepts about high-strength bolts 1. According to the specified performance level of bolts above 8.8, they are called high-strength bolts. The current national standard only lists M39. For large-size specifications, especially those with a length greater than 10 to 15 times High-strength...