Classification, Materials and Application Areas of Non - standard Cap Screws
By Thread Type
Coarse - Thread Non - standard Cap Screws: They have a relatively larger pitch between the threads. Coarse - thread screws are generally used in applications where quick assembly and disassembly are required, and where the material being joined has a relatively low hardness. The non - standard part might be an unusual thread pitch value that is designed to match a specific mating part's thread or to provide a different level of fastening force.
Fine - Thread Non - standard Cap Screws: With a smaller pitch, fine - thread screws offer a more precise adjustment and can provide greater holding power in some cases. The non - standard aspect could involve a non - standard thread diameter - pitch combination to fit into a particular pre - threaded hole or to work with a specialized nut.
