Corrigendum

Subclause 3.5: delete the title and insert: '3.5 Tolerance on half-angle alpha/2 of thread'; Table 3: For size designation '1/8' delete the value of minimum major diameter '9.865' and insert '9.685'; Tables 5 and 6: In the columns 'Tap designation' delete 'Tolerance on angle alpha and half-angle alpha/2' and insert 'Tolerance on half-angle alpha/2'.