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The definition of the hexagonal flat head screw refers to the hexagonal head, the head is a flat round head screw, the screw industry professional called the flat cup, a simple overview. It is also called a hexagonal round cup and a hexagonal flat head bolt. There are many names, but the content is the same.
There are two kinds of hexagonal flat head screws. These two are commonly used materials, such as stainless steel and carbon steel. We generally refer to iron in carbon steel. Carbon steel is classified by grade hardness and has low carbon steel. Medium carbon steel, high carbon steel. Therefore, the strength level of the hexagonal flat head screw is 4.8, 8.8, 10.9, and 12.9.
If the hexagonal flat head screw is iron, it is generally required to be electroplated. The electroplating is divided into environmental protection and non-environmental protection. Non-environmental protection is ordinary plating. Environmentally friendly, environmentally friendly blue zinc, environmentally friendly color zinc, environmentally friendly nickel, environmentally friendly white zinc, etc., non-environmental plating has black zinc, white zinc, color zinc, white nickel, black nickel, black.
Users who place orders directly or by telephone through this product order can get a few samples of standard parts for free and enjoy corresponding discounts according to the order quantity
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