How to control the quality of the metric truss head machine screws?

How to control the quality of the metric truss head machine screws?: After the customer placed the order for the metric truss head machine screws, the quality was actually controlled. On the map to the customer

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stainless flat head screws, surface a variety of color can do it?

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No matter who we are, we all have our favorite colors, some people like black, some people like red, some people like orange, and so on. For  stainless flat head screws , some people want to make him the color they like or make a color that matches their own products. So, can these colors be made? The surface treatment of  stainless flat head screws  is generally passivated, environmentally friendly zinc, high-temperature blackening, electrophoresis, zinc-nickel alloy and the like. There are not many colors, not the true color, or the black color. If you want to make stainless steel countersunk screws into other colors, such as purple, then you need vacuum treatment. S tainless flat head screws  can be vacuum processed to achieve different color requirements. However, in other colors, it is generally required to provide color cards for customers, because even if they are purple, there are differences in color, some deep and some shallow. Some peopl...
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What effect does washer head screws have?

Generally speaking, no matter what type of screw, they will have their own role. For example, the head with serration, is generally in order to prevent slip, screw screw part point with blue glue, is to make the screw in the assembly after more difficult to fall out, the fastening effect is better. So what does the washer head screws do? washer head screws is generally the finger with washer, rather than the screw head under the flat washer, spring washer. This screw is generally to increase the area of contact between the screw and the object, reducing friction. At the same time also save wear flat pad, spring pad time, prevent screw loose. And washer head screws can be made with pan head, cup head, big flat head is flat to make a screw with washer, and countersunk head, half countersunk head is not made with washer head screw. In addition, the diameter of meson can be large or small. For example, for the screw M6 of some customers, the diameter of meson may be made into ...
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Die Spotting Extra Long screw

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Today, Shi Shi Tong screw manufacturers have introduced a new die spotting  extra long screw . But a screw length 56 cm? Isn’t that more than half a meter long? Yes, the picture above is the short screw that our die spotting machine made. Shi Shi Tong screw manufacturers can be infinitely  extra long screw  according to customer needs, and of course there are no customers who require unlimited length. The Shi Shi Tong screw manufacturer gave us a 1.2 meter  extra long screw  for training. Because the camera technology needs to be improved, it will be displayed next time. In other words, what length do you need, Shi Shi Tong will do the length of your needs, and change the process of welding in the past to lengthen the screw, solving the big problem that will break during use. At present, the cold rolling process used by Shi Shi Tong screw manufacturers to produce long screws is one-time cold forming of...
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