1. Phosphating film is not generatedThe surface of the standard parts is hardened by cold work, the sulphate content in

How to store the bolts in the warehouse?The high-strength bolt connection pair shall be cleaned, classified and stored i

In fastener work, the situation is far more complex and severe than in the physical model.It is clear that the invalidat

People go out to see all the products in the screw fasteners, most of the screw fasteners are head shape, the thread sym

(1) use solvent-free paint for vibration machinery as far as possible.(2), it is better to use no air oxidation componen

There are two kinds of surface inspection of screws, one is the inspection before the electroplating process after the p

Actually cross trough pan head screw is to a kind of strengthening and improving the cross slots, general practice is at

The socket wrench is a special manual tool for tightening or loosening the unloading screw. It is mainly used for tighte

General thread has coarse teeth and fine teeth, the same nominal diameter can have a variety of pitch, in which the larg

Screw type, whether it#39;s glasses with micro screw or large heavy electrical engineering to use the size of the screw

Development history and classification of self - tapping screws and rivetsThe earliest rivets were small studs made of w

Function and test method of self - tapping screw triple screwTriple screw is also called triple screw.The name si yi, is