Shenzhen Shi Shi Tong Metal Products Co., Ltd

Material selection: Generally speaking, SSTong screw manufacturers make screws from low to medium carbon steel wire rods.Sometimes they use cheap and durable materials such as brass, aluminum or nickel alloys.The quality of the material determines whether the screw is broken.The coating on the screw must be compatible with the material of the manufacturing screw.For example, steel screws should have zinc, nickel or chromium plated material. Screw shank design: For single-threaded screws, lead and asphalt have the same properties. The pitch on a two-wire screw is twice the pitch, and the pitch on the three wire is three times. Pitch refers to the measurement between two grooves at the same point on each thread, or the number of threads per inch. Screw manufacturers also need lead to measure the penetration distance of each screw speed.This is part of the  screw process . machine work: The screw manufacturer knows that it is suitable for small screws or ...

After a long time facing the computer and mobile phone, vision has been affected. Many people now wear glasses. It is important to choose the right glasses for you, but it is also important to choose the screws on the glasses. So how do you choose a tiny screws for glasses manufacturer? Insert picture description The screws that are often used on glasses are: 1*3TM, 1*6TM, 1.4*1.8PM, etc. When choosing a tiny screws for glasses manufacturer, it is necessary to see if this manufacturer can produce such a small size screw. Second, it depends on what materials the manufacturer can do. The materials for the tiny screws for glasses are often made of stainless steel and carbon steel. Now added titanium. Mainly because the weight of the small screws made of titanium is almost negligible. Glasses are worn for a long time. If the overall weight of the glasses is increased, it will cause squeezing on our bridge of the nose. The small screws made of titanium are basically no weigh...