China hardware Stainless steel screw manufacturer

 Analysis of the causes of rusty hardware screws: 1. When the electroplating factory is electroplating hardware screws, the drying is not done, resulting in residual water vapor. Or, after drying, condensate is formed during packaging. Dongguan Electronic Screw Factory introduces to you, it causes chemical reaction, produces bad occurrence, and causes hardware screw to rust. 2. Stored in a humid place for a long time. Over time, the hardware screws will slowly be corroded and oxidized, causing serious rust. 3. When electroplating hardware screws, the electroplating is poor, and the electroplating layer is too thin. Cause rust. All in all, analyze the reasons from four aspects.   The four directions are: 1. Storage environment 2. Types of electroplating 3. How to save 4. Use environment. Therefore, we must pay attention to the key points in the use of stainless steel screws: 1. The surface of the stainless steel screw adheres to the organic juice (such as melon, vegetable, nood...

Self-tapping screws are often seen in metal plates with relatively thin links (steel plates, saw plates, etc.). Due to the high strength of the threaded surface of the self-tapping screw (≥HRC45), when linking, the self-tapping screw is screwed into the connector that has been made with the threaded bottom hole in advance, so that the inner thread can be tapped in the threaded bottom hole of the link The thread thus completes the connection. There is a special screw that has better working performance than ordinary self-tapping screws and can even replace machine screws-self-tapping pin screws are often used for links between thin metal plates. The difference between it and the ordinary self-tapping screw is the ordinary thread with the arc-shaped triangular interface with higher hardness. This kind of excellent screw with low screwing torque and high locking performance, of course, can also tap the internal thread in the threaded bottom hole to be connected like a normal screw. The wa...

First, the general method of "material number (P/N)" for screws: 1. Electroplating color number: N1-Nickel N2-Cpper Nickel N3-Three Layer Nickel (Three Layer Nickel), also known as anti-rust nickel N4-Black Nickel (Black Nickel) N5-Chemical nickel (also known as no Electrodepositing nickel) Z1-White Zinc Z2-Blue Zinc Z3-Dichromate Z4-Black Zinc Z5-Wellow Zinc Z6-Clear Chromate And Red DYE) Z7-Zinc With Green Z8-Zinc With Blue Z9-Trivalent Blue Zinc ZW-Trivalent White Zinc ZY-Trivalent Color (Trivalent Chromate) ZP-phosphate black zinc (614 Black Zinc) ZB-trivalent (chromium) black zinc (Trivalent Black Zinc/GR3 Black zinc) D1-grey Dacromet (Dacromet) D2-black Dacromet (Black Dacromet) G1-Bronze (Brass) G2-Red Copper (Copper) G3-Bronze T1-Electric Army Green T2-Electrophoresis Paint (Black) (ELECTROPHORESIS (BLACK)) Cr-Chrome Sn-Tin-Plating Ag-Silver-Plating Au- Gold-plated O1-Black Oxide (Black Oxide) T3-Black Oxide Without Oil PA-Primitive colors A-Spray Yellow Paint B-Pink ...

Advantages and disadvantages of plastic screws 1. Compared with ordinary metal screws, the biggest advantage of plastic screws is that they have good insulation properties and are not conductive. 2. In addition, because of non-metal manufacturing, there will be no signal interference such as eddy current under the influence of current or other electrical signals, and its anti-interference is somewhat suitable for communications and other industries. 3. Plastic screws have better acid and alkali resistance. Among them, the best PVDF screw is polypropylene. Both have strong acid and alkali resistance. Compared with the former two, nylon screws are resistant to strong acids and alkalis. The performance is relatively poor, so in some strong acid and alkali environments in the electroplating industry, plastic screws, especially PVDF screws, have a wide range of applications defect: 1. The biggest disadvantage of plastic screws is that the torque and strength of ordinary plastic screws are n...

Advantages and disadvantages of galvanized stainless steel bolts Hot-dip galvanizing is also called hot-dip galvanizing and hot-dip galvanizing: it is an effective method of metal anti-corrosion, mainly used in metal structures and facilities in various industries. The rust-removed steel parts are immersed in a molten zinc solution at about 500°C to attach a zinc layer to the surface of the steel parts, thereby achieving the purpose of anti-corrosion. In the standard parts industry, galvanizing is often used to achieve the purpose of corrosion and rust prevention. Hot-dip galvanized bolts are also called hot-dip galvanized bolts. After degreasing and derusting, the bolts present a non-polluting and infiltrating surface. They are immediately immersed in a plating tank where the zinc is melted beforehand. A method of forming a zinc coating. The coating of hot-dip galvanized bolts is thick, generally 30-60 microns, and the coating has a high anti-corrosion ability. Steel parts suitable fo...

Today, stainless steel has come to become among the most indispensable materials in the world around us. Owing to its strength, durability and versatility, it has found applications in sectors ranging from construction to medical to science and technology. However, none of this would be possible without stainless steel fabrication, which essentially means manufacturing steel in varied forms and shapes. Let's take a look at the various objects that can be achieved with the help of this fabrication: Frames: Be it frames for windows or doors or for machines, steel has to be fabricated to create a solid framework for a variety of objects. These frames not only provide a casing for the inner objects, but they also render strength to the overall structure. Screw conveyors: These are extensively used in the manufacturing sector. But even to make these conveyors, fabricated stainless steel needs to be used. They are used in a variety of mixing and churning applications. Railings: Whether i...

Screws are the smallest, but the most essential part or component in engineering and manufacturing industries. There are several types of screws available on the market, and Sems screws are an exception amongst them. By conventional definition, sems screws are types of machine screws that are equipped with a pre-assembled free-spinning lock-washer in one assembly. The washers are captive, thus permanently attached. Normally, washers are often used in a combination with the screws just to improve the overall structural integrity of a given assembly. Nonetheless, in this case, these two are separate components altogether. However, the pre-assembled screw and washer combination is quite simplified and have improved efficiencies in several manufacturing processes. Also, they are available in a variety of types including tapping and machine screws with different head types. Moreover, speaking of their materials, these screws are made out of high grade materials like stainless steel, steel, ...

The machine screw, a term that has confused most people at one time or other as it looks like a bolt and can be used with a nut as well. The term seems to have arisen as the term screw seemed originally to refer to all small screws and bolts. Strangely as the machine screws got bigger the term stayed the same. The development of metal box construction made the machine screw far more in demand. It is the ideal construction item when the fixing can be completed from one side of the work only. In this case a hole is drilled into the base of the unit and the hole is tapped with the screw thread of the same size as the machine screw. The top section has the equivalent hole but slightly larger drilled through the section, when the 2 pieces are offered together they can be combined by pushing the screw through the top section and screwing it into the tapped hole below. The finished joint can be tightened strongly and works extremely well. The machine screws can be purchased from a good suppli...