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Homepage>BS Standards>25 MANUFACTURING ENGINEERING>25.100 Cutting tools>25.100.50 Taps and threading dies>BS 949-4:1990 Screwing taps Specification for metric ground thread taps: manufacturing tolerances
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immediate downloadReleased: 1990-06-29
BS 949-4:1990 Screwing taps Specification for metric ground thread taps: manufacturing tolerances

BS 949-4:1990

Screwing taps Specification for metric ground thread taps: manufacturing tolerances

CURRENCY
LANGUAGE
English
Standard number:BS 949-4:1990
Pages:28
Released:1990-06-29
ISBN:0 580 18629 6
Status:Standard
DESCRIPTION
This standard BS 949-4:1990 Screwing taps is classified in these ICS categories:
  • 25.100.50 Taps and threading dies

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.
This product includes: