External Hexagonal Cross Three Combination Machine Screw

The external hexagonal cross groove three combination mechanical screw is a combination of external hexagonal screws, cross groove screws, spring washers, and Plain Washers. Its appearance is usually an outer hexagonal head, with a cross groove in the middle and a combination of spring washers and flat washers at the bottom.
The advantages of this combination screw are its easy installation, quick disassembly, uniform force distribution, and resistance to slipping. Due to its special cross groove design, it is not easy to experience slippage during installation, resulting in quick tool installation and time saving. At the same time, its threads are complete, the surface is smooth, the screw opening is deep, the force is uniform, and it is not easy to slip.
External hexagonal cross groove triple combination mechanical screws are usually produced using screw wire materials such as 1010, 1018, 10B21, etc. The wire materials are different and can be divided into 4.8 and 8.8 levels according to their hardness levels. 8.8 grade is generally produced using screw wires 1018 and 10B21, which require hardening. After hardening, hydrogen needs to be removed first, and then different colors need to be electroplated.
This combination screw is widely used in fields such as power equipment, electronic machinery, mechanical equipment, household appliances, digital products, water conservancy engineering, and decoration construction, with a wide range of applications.