BSI BS 21:1985

Current Revision
Pipe threads

Best Price Guarantee Sep 30, 1985 English 20 Pages

This Document Has Been Superseded

A newer publication replaces it: BSI BS EN 10226-1, BSI BS EN 10226-2, BSI BS EN 10226-3


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BSI BS 21:1985

Pipe threads

PUBLISH DATE 1985
PAGES 20
BSI BS 21:1985

INCORPORATES AMENDMENT 1

Range of threads from 9A to 6, together with thread forms, dimensions and tolerances, designations.

Includes appendices for recommended gauging systems and methods of use of gauges.

Requirements for:

  • jointing threads for taper external threads,
  • assembly with either tapes or parallel internal threads,
  • longscrew threads for longscrews specified in BS 1387.

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