Trapezoidal Threads are used for translation motion in machine tools like lead screws, where rapid movement is required or in screw jacks, where load to be shared is more.
| ISO Specifications: | Basic Dimensions: ISO 2903 – 1993, ISO 2904 – 1977 & Gauging Practice: DIN 103(9)-1985. |
| IS Specifications: | Basic Dimensions: IS 7008-1988, IS 7008(4)-1999 & Gauging Practice: DIN 103(9)-1985 |