Generally, carbon steel and alloy steel bolts fail when there are obvious corrosion products and thinning on the surface, and stainless steel screws w…
I will not talk about the parameters of the national standard. In my experience, I only need to know these three parameters. The D value is the outer …
Every day to do machinery to deal with threads, especially hydropneumatic, long time domestic and foreign, metric, imperial, straight, cone, sealed, u…
It can be divided into:
