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The difference between screws, nuts, nuts, bolts, screws, and studs: The standard saying is that there are no screws and nuts. Screws are a common name, and those with external threads can be called "screws". The sh...

High-strength screws are a type of fastener that has undergone special processing techniques (such as heat treatment and cold forging), featuring high tensile strength, high yield strength, and excellent fatigue res...

Standard parts refer to common parts (parts) that have been completely standardized in terms of structure, size, drawing, marking, etc. and produced by professional factories, such as threaded parts, keys, pins, rol...