Hexagon Socket Head Bolt is a fastener consisting of a head and screws (cylinders with external threads). It needs to cooperate with the nut to be used as a fastener to connect two parts with through holes. This form of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. So what should we pay attention to before using?

Hexagon Socket Head Bolt introduction:

1. Correct product selection: Before use, please confirm whether the mechanical properties of the product meet the requirements for use, such as the tensile strength of the Hexagon Socket Head Bolt and the load of the nut. The length of the hexagon socket screws should be properly selected. After tightening, the selection should be based on the 1-2 pitch of the nut.

2. Before use, please check whether the thread is rough, and whether there is iron filings or dust between the threads. These things often lead to lockups.

3. Fasteners can be lubricated before use: it is recommended to use butter, molybdenum disulfide, mica, graphite or talc powder for lubrication. At present, it is generally lubricated with wax to prevent locking.

4. Pay attention to the method of use:

(1) The speed and strength of the screw-in are appropriate, not too fast or too large. Use torque wrenches or socket wrenches whenever possible. Prevent the use of adjustable wrenches or electric wrenches. Excessive speed will cause the temperature to rise rapidly and cause locking.

(2) The direction of the applied force, the nut must be tightened perpendicular to the axis of the screw.

5. The use of washers can effectively prevent the problem of over-tightening.

6. Fasteners made of stainless steel, aluminum alloy and titanium alloy often lock or bite. These metal alloys have corrosion resistance. When the surface is damaged, a thin oxide layer is formed on the metal surface to prevent further corrosion. When the stainless steel fasteners are locked, the pressure and heat generated between the teeth will destroy the oxide layer, resulting in blockage or shearing between the metal threads, and then adhesion. When this phenomenon continues to occur, the stainless steel fasteners will be completely locked and can no longer be removed or locked.

The above is China Custom Bolt Wholesaler——Zhejiang Weigao Standard Parts Co., Ltd. introduces the relevant knowledge of Hexagon Socket Head Bolt, hope to give you reference when choosing Hexagon Socket Head Bolt.