rnal threads with the parallel internal threads specified here rather than with taper internal threads, as the former are easier to manufacture. To cater for thin-ponents that require short thread lengths, a short design of taper external thread has been specified along with the standard design. The nominal sizes given in table 2 are based on the assumption that the dimensions lie perpendicular to the thread axis at the reference or gauge plane. The limit deviations for the thread diameters have been calculated from the following formula: A g = t A a × C , where C = 1 : 16, i.e. where A g is the thread diameter; A a is the deviation for dimensions a or b ; C is the taper. A A g a = ± 16 Page 10DIN158-1 : 1997-06 Als Papierkopie - kein ?nderungsdienst / Printed copy - no alert service
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