BS 949-4:1990

Screwing taps. Specification for metric ground thread taps: manufacturing tolerances.

NORMA vydaná dňa 29.6.1990

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Informácie o norme:

Označenie normy: BS 949-4:1990
Dátum vydania normy: 29.6.1990
Počet strán: 28
Približná hmotnosť: 84 g (0.19 libier)
Krajina: Britská technická norma
Kategória: Technické normy BS

Anotácia textu normy BS 949-4:1990 :

Manufacturing tolerances on the threaded portion of taps for producing ISO metric threads of tolerance classes 4H to 8H and 4G to 6G. Valid for short taps specified in ISO/R 529 as well as any other kind of ground thread taps with the same diameters and pitches. Status: Under Review