Thread Cutting Screws

Thread cutting screws are a type of self-tapping screw that create their own threads by removing material as they are driven into a material.

 This is different from self-forming screws, which displace material rather than removing it.   

Key characteristics of thread cutting screws:

Self-tapping: They don't require a pre-drilled hole.   
Material removal: They cut threads by removing material from the host material.   
Thread type: Typically use machine screw threads.   
Materials: Often made from hardened steel, but can also be made from other materials like stainless steel or brass.   
Applications: Commonly used in construction, manufacturing, and other industries where fastening is required.

Common types of thread cutting screws:

Type 1: Used for harder materials like steel, alloy steel, and cast iron.   
Type F: Used for castings, forgings, heavy sheet metal, structural steel, plywood, and plastics.   
Type 23: Fine thread series with maximum thread cutting area and excellent chip clearing.   
Type 25: Similar to Type 23 but with coarse Type B thread, suitable for plastics and other soft materials.