- Annealing (metallurgy)
- Stainless steel
- Martensite
- Austenite
- American wire gauge
- Standard wire gauge
- British standard pipe thread
- National pipe thread
- AN thread
- Screw
- British Standard Whitworth
- ISO metric screw thread
- British Association screw threads
- Unified Thread Standard
- British standard fine thread
- Steel
- Metal
- Pipe (material)
- Nominal Pipe Size