Fasteners include: bolts, studs, screws, nuts, washers, pins. Locking or seizure often occurs on fasteners made of stainless steel, aluminum alloy and titanium alloy. These metal alloys have anti-corrosion properties and will form a thin oxide layer on the metal surface to prevent damage when the surface is damaged. Further rust. When the stainless steel fasteners are locked, the pressure and heat generated between the teeth will damage the oxide layer, causing blockage or shearing between the metal threads, and adhesion will occur. When this phenomenon continues, the stainless steel fasteners will be completely locked and will no longer be able to be removed or remain locked. Usually a series of blocking_clip_adhesive_locking actions take place in just a few seconds, so correct understanding of the use of such fasteners can prevent this phenomenon.

1. Choose the right product

a. Before using, confirm whether the mechanical properties of the product can meet the requirements of use, such as the tensile strength of the screw and the guaranteed load of the nut. The length of the screw should be properly selected to tighten the nut and expose the nut 1-2 teeth.

b. Check if the thread is rough before use and if there are iron filings or dirt between the threads, these things often lead to locking.

c. Lubricate the fasteners before use. It is recommended to use butter, molybdenum disulfide, mica, graphite or talc for lubrication. Generally, it is treated with dipping wax to prevent lubrication.

2. Pay attention to the method of use when using