Screws on machinery and equipment - machine screws

As the name implies, machine screws or called machine screws are usually screws used on machinery and equipment and are very commonly used.

The following is the content introduction

• What are machine screws

• Commonly used standards for Mechanical screws

• Strength grade standards for machine screws

• Mechanical screw application range

• Scope of application of machine screws

What are machine screws?

The machine screw is also called machine screw, Mechanical screw, is assembled in the threaded hole inside the screw, is ahead with an internally threaded hole between the parts, and a part with a through-hole connection, generally machine screws with nuts, machine screws have a variety of types of head, can be hexagonal cheese head machine screws, plum slot machine screws, hexagonal round head machine screws, cross slot countersunk head machine screws, cross slot pan head machine screw, flat head machine screw, half-round head machine screw, Torx head machine screw security screw, zinc-plated pan Phillips machine screw, A2-70 stainless steel machine screw, Stainless steel 410 machine screw, type F thread cutting machine screw, din7504 machine screw, hex socket machine screw and so on.

Commonly used standards for Mechanical screws

Mechanical screws are generally available in metric, American, Japanese, and other national standards. As Mechanical screws can be divided into machine screws and self-tapping screws, so the common standards are also divided into -

• Common standards for machine screws: GB818, GB819, etc.;

• Self-tapping screws commonly used standards: GB845, GB846, etc.

Strength grade standards for machine screws

As Mechanical screws are used in machinery with tapped teeth supporting the use of, or with nuts used to fasten the product, the need for a certain force according to the material requirements. Some Mechanical screws due to the material hardness are not enough, need to harden treatment so that their hardness can reach the standard or meet customer demand. With the hardness index, the strength grade standard of Mechanical screws came into being, generally 4.8 grade, 8.8 grade, 10.9 grade, 12.9 grade, etc.

Mechanical screw application range

Mechanical screws are widely used, in addition to mechanical equipment, but also widely used in water conservancy, decoration, engineering, vehicles, and other fields. The use of different occasions needs to select different materials and strength levels, need to carefully identify the choice!

Scope of application of machine screws

There are generally carbon steel machine screws and stainless-steel machine screws and other materials. Both have their advantages and disadvantages. Carbon steel can be divided into low carbon steel, medium carbon steel, high carbon steel; stainless steel is divided into SUS201/304/316 and so on. The above is some knowledge of Mechanical screws.

Ningbo yi pian hong Fastener Co., Ltd. was established in 2001, specializing in the production of all kinds of high-strength bolts, nuts, and threaded rods, with an annual production capacity of 30000 tons and an annual turnover of 300 million yuan. Products include ANSI / ASTM, DIN, BS, ISO, GB, JS, and other standards, which are mainly used in the field of high-strength seals and oil pipeline valves.