1. The self-drilling screw is a screw with a drill bit. Drilling, tapping, fixing, and locking are completed at one time by special electric tools. The self-drilling screw is mainly used for the connection and fixation of some thin plate parts, such as For the connection of color steel plate and col... read more
1. After driving the self drilling screw into the hole on the ground or wall, tighten the nut on the self-drilling self-tapping screw with a wrench. The screw goes out, but the outer metal sleeve does not move, so the big head under the screw is Expand the metal sleeve so that it fills the entire ho... read more
Inside experts said that behind the construction of the behemoth, there are indispensable functions of small stainless steel fasteners. Although they are only small participants, they have a crucial impact. Because of the importance of its connection, consumers have gained more favor for the brand i... read more
The standard parts on the market mainly include carbon steel, stainless steel and copper. One carbon steel. We distinguish low carbon steel, medium carbon steel and high carbon steel and alloy steel by the carbon content in carbon steel. 1 Low carbon steel C% ≤0.25% is usually called A3 steel in Chi... read more
Stainless steel screws are made of metal, and there are four main ways to prevent metal corrosion, namely the nature of the material, the environment used, the interface between the data and the environment, and the design of the improved metal structure. If a complete corrosion-resistant alloy is u... read more
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