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BS 949-4:1990

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

Standard Details

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.

General Information

Status : Under Review
Standard Type: Main
Document No: BS 949-4:1990
Document Year: 1990
Pages: 28
  • Section Volume:
  • GBM14 Manufacturing Engineering (GMB14)

Life Cycle

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BS 949-4:1990
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