Advantages of high strength galvanized bolt High strength galvanized bolt is galvanized, so what are its advantages? Hot dip galvanizing is also used to protect the surface of screws, bolts and nuts from corrosion. Hot dip galvanized screws have better corrosion resistance than electro galvanized screws. However, high cost and high strength structural bolts are [...]
High Strength Dacromet Hex Bolts are processed by Dacromet, so what are the advantages? 1. Excellent corrosion resistance. In the salt spray test, the UN etched zinc coating will corrode 1 μ m ~ 3 μ m thick rainbow colored film in 10 hours and wear out in 200 hours. The corrosion resistance of Dacromet [...]
How is the bolt head and thread processed? The head of bolt is formed by cold upsetting plastic processing. Compared with the cutting process, the metal fiber (metal wire) is continuous along the product shape without cutting off in the middle. Therefore, the strength of the product is improved, especially the mechanical properties are excellent. [...]
There are three kinds of Hexagonal bolt materials: carbon steel, stainless steel, copper. Carbon steel: We distinguish low carbon steel, medium carbon steel, high carbon steel and alloy steel by carbon content in carbon steel. 1. Low carbon steel C% ≤ 0.25% is usually called A3 steel in China. It is called 1008101510181022 in foreign [...]
At present, the standard Bolts Production Material on the market mainly include carbon steel, stainless steel and copper. Carbon steel: We distinguish low carbon steel, medium carbon steel and high carbon steel as well as alloy steel with carbon content in carbon steel. stainless steel: Performance rating: 45, 50, 60, 70, 80. copper: Common materials [...]
Annealing: The wire is heated to a suitable temperature for a certain period of time, and then slowly cooled to adjust the crystal structure, reduce the hardness, and improve the normal temperature processability of the wire. Pickling: removes the oxide film on the surface of the wire and forms a phosphate film on the metal [...]
The bracket bolt has a dome or sink head, and the top of the handle has a short square section under the head of the bolt. The square part is clamped into the fixed part to prevent the bolt from turning when the nut is tightened. Bracket bolts are usually used to fix boards or [...]