Calculation of internal and external thread:
Whitworth BSW and BSF;
Unified UNC and UNF;
Measurements of maximum and minimum of diameter effective, major and minor.
Measure on the sphere to external threads;
Torque by class of material;
免費玩Threads M BSW BSF UNC UNF TR APP玩免費
免費玩Threads M BSW BSF UNC UNF TR App