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In knife making, different types of screws are generally used to fasten components together, such as handle inserts, pocket clips and various parts of the mechanism. Common screws include those with flat heads, domed heads and countersunk heads. Here's an overview of these screw types:
Flat-head screws (flat-head screws, pan-head screws):
Countersunk head screws (conical head screws):
M2 and M3 screws refer to different standard screw sizes. The designation "M" stands for "metric", and the number following indicates the nominal thread diameter in millimeters.
M2 screws :
M3 screws :
In short, flat-head, domed and countersunk screws offer different aesthetic and functional options in knife manufacturing. The choice between M2 and M3 screws will depend on knife specifications, materials used and strength and performance requirements.